{"id":3430,"date":"2024-07-22T10:32:48","date_gmt":"2024-07-22T02:32:48","guid":{"rendered":"https:\/\/www.195440.com\/?p=3430"},"modified":"2024-07-22T10:32:48","modified_gmt":"2024-07-22T02:32:48","slug":"web%e6%97%a0%e9%9a%9c%e7%a2%8d%e5%bc%80%e5%8f%91%e6%95%99%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/www.195440.com\/3430","title":{"rendered":"Web\u65e0\u969c\u788d\u5f00\u53d1\u6559\u7a0b"},"content":{"rendered":"<link rel=\"stylesheet\" href="\""https:\/\/cdn.bootcdn.net\/ajax\/libs\/highlight.js\/11.9.0\/styles\/atom-one-dark.min.css\">\n<style>\n.markdown-body pre{\n  background-color: #000000;\n}\n<\/style>\n<h1>Web\u65e0\u969c\u788d\u5f00\u53d1\u6559\u7a0b<\/h1>\n<h3>\u76ee\u5f55<\/h2>\n<ol>\n<li>Web\u65e0\u969c\u788d\u7b80\u4ecb<\/li>\n<li>\u65e0\u969c\u788d\u8bbe\u8ba1\u539f\u5219<\/li>\n<li>HTML\u8bed\u4e49\u5316<\/li>\n<li>\u952e\u76d8\u53ef\u8bbf\u95ee\u6027<\/li>\n<li>\u89c6\u89c9\u8bbe\u8ba1\u4e0e\u65e0\u969c\u788d<\/li>\n<li>\u591a\u5a92\u4f53\u65e0\u969c\u788d<\/li>\n<li>\u8868\u5355\u4e0e\u4ea4\u4e92\u5143\u7d20\u65e0\u969c\u788d<\/li>\n<li>\u8f85\u52a9\u6280\u672f\u517c\u5bb9\u6027<\/li>\n<li>\u6d4b\u8bd5\u4e0e\u8bc4\u4f30<\/li>\n<li>\u6cd5\u5f8b\u548c\u653f\u7b56\u5408\u89c4<\/li>\n<li>\u7f51\u7ad9\u65e0\u969c\u788d\u58f0\u660e<\/li>\n<\/ol>\n<h1>Web\u65e0\u969c\u788d\u7b80\u4ecb<\/h1>\n<h3>\u4ec0\u4e48\u662fWeb\u65e0\u969c\u788d<\/h2>\n<p>Web\u65e0\u969c\u788d\uff08Web 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508<\/strong><\/p>\n<p>\u8fd9\u662f\u7f8e\u56fd\u7684\u4e00\u9879\u6cd5\u89c4\uff0c\u8981\u6c42\u8054\u90a6\u673a\u6784\u7684\u7535\u5b50\u548c\u4fe1\u606f\u6280\u672f\u5bf9\u6b8b\u969c\u4eba\u58eb\u53ef\u8bbf\u95ee\u3002\u867d\u7136\u4e3b\u8981\u9002\u7528\u4e8e\u7f8e\u56fd\u653f\u5e9c\u7f51\u7ad9\uff0c\u4f46\u4e5f\u5e38\u88ab\u5176\u4ed6\u7ec4\u7ec7\u91c7\u7528\u4f5c\u4e3a\u6307\u5357\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u8981\u5b9e\u73b0Web\u65e0\u969c\u788d\uff0c\u5f00\u53d1\u8005\u5e94\u8be5\u719f\u6089\u8fd9\u4e9b\u6807\u51c6\u548c\u6307\u5357\uff0c\u5e76\u5728\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u79ef\u6781\u5e94\u7528\u3002\u540c\u65f6\uff0c\u5b9a\u671f\u8fdb\u884c\u65e0\u969c\u788d\u6d4b\u8bd5\u548c\u8bc4\u4f30\u4e5f\u662f\u786e\u4fdd\u7f51\u7ad9\u6301\u7eed\u7b26\u5408\u65e0\u969c\u788d\u6807\u51c6\u7684\u91cd\u8981\u6b65\u9aa4\u3002<\/p>\n<h1>\u65e0\u969c\u788d\u8bbe\u8ba1\u539f\u5219<\/h1>\n<h3>\u611f\u77e5\u6027<\/h2>\n<p>\u611f\u77e5\u6027\u539f\u5219\u8981\u6c42\u7f51\u7ad9\u7684\u4fe1\u606f\u548c\u7528\u6237\u754c\u9762\u7ec4\u4ef6\u5fc5\u987b\u4ee5\u7528\u6237\u53ef\u4ee5\u611f\u77e5\u7684\u65b9\u5f0f\u5448\u73b0\u3002<\/p>\n<div>\n<li>\u4e3a\u975e\u6587\u672c\u5185\u5bb9\u63d0\u4f9b\u66ff\u4ee3\u6587\u672c<\/li>\n<li>\u4e3a\u591a\u5a92\u4f53\u5185\u5bb9\u63d0\u4f9b\u5b57\u5e55\u548c\u97f3\u9891\u63cf\u8ff0<\/li>\n<li>\u521b\u5efa\u53ef\u4ee5\u4ee5\u4e0d\u540c\u65b9\u5f0f\u5448\u73b0\u7684\u5185\u5bb9\uff0c\u800c\u4e0d\u4e22\u5931\u4fe1\u606f\u6216\u7ed3\u6784<\/li>\n<li>\u4f7f\u5185\u5bb9\u6613\u4e8e\u67e5\u770b\u548c\u542c\u53d6<\/li>\n<\/ul>\n<p>\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre><code class=\"language-html hljs language-xml\" data-highlighted=\"yes\"><span class=\"hljs-comment\">&lt;!-- \u4e3a\u56fe\u7247\u63d0\u4f9b\u66ff\u4ee3\u6587\u672c --&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">img<\/span> <span class=\"hljs-attr\">src<\/span>=<span class=\"hljs-string\">\"logo.png\"<\/span> <span class=\"hljs-attr\">alt<\/span>=<span class=\"hljs-string\">\"\u516c\u53f8\u6807\u5fd7\"<\/span>&gt;<\/span>\r\n\r\n<span class=\"hljs-comment\">&lt;!-- \u4e3a\u89c6\u9891\u63d0\u4f9b\u5b57\u5e55 --&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">video<\/span> <span class=\"hljs-attr\">controls<\/span>&gt;<\/span>\r\n  <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">source<\/span> <span class=\"hljs-attr\">src<\/span>=<span class=\"hljs-string\">\"video.mp4\"<\/span> <span class=\"hljs-attr\">type<\/span>=<span class=\"hljs-string\">\"video\/mp4\"<\/span>&gt;<\/span>\r\n  <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">track<\/span> <span class=\"hljs-attr\">kind<\/span>=<span class=\"hljs-string\">\"captions\"<\/span> <span class=\"hljs-attr\">src<\/span>=<span class=\"hljs-string\">\"captions.vtt\"<\/span> <span class=\"hljs-attr\">srclang<\/span>=<span class=\"hljs-string\">\"zh\"<\/span> <span class=\"hljs-attr\">label<\/span>=<span class=\"hljs-string\">\"\u4e2d\u6587\u5b57\u5e55\"<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">video<\/span>&gt;<\/span><\/code><\/pre>\n<h3>\u53ef\u64cd\u4f5c\u6027<\/h2>\n<p>\u53ef\u64cd\u4f5c\u6027\u539f\u5219\u786e\u4fdd\u7528\u6237\u754c\u9762\u7ec4\u4ef6\u548c\u5bfc\u822a\u662f\u53ef\u64cd\u4f5c\u7684\u3002<\/p>\n<div>\n<li>\u6240\u6709\u529f\u80fd\u5e94\u53ef\u901a\u8fc7\u952e\u76d8\u8bbf\u95ee<\/li>\n<li>\u4e3a\u7528\u6237\u63d0\u4f9b\u8db3\u591f\u7684\u65f6\u95f4\u9605\u8bfb\u548c\u4f7f\u7528\u5185\u5bb9<\/li>\n<li>\u907f\u514d\u8bbe\u8ba1\u53ef\u80fd\u5bfc\u81f4\u766b\u75eb\u53d1\u4f5c\u7684\u5185\u5bb9<\/li>\n<li>\u63d0\u4f9b\u5e2e\u52a9\u7528\u6237\u5bfc\u822a\u548c\u627e\u5230\u5185\u5bb9\u7684\u65b9\u6cd5<\/li>\n<\/ul>\n<p>\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre><code class=\"language-html hljs language-xml\" data-highlighted=\"yes\"><span class=\"hljs-comment\">&lt;!-- \u4f7f\u7528\u8bed\u4e49\u5316\u7684\u5bfc\u822a\u7ed3\u6784 --&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">nav<\/span> <span class=\"hljs-attr\">aria-label<\/span>=<span class=\"hljs-string\">\"\u4e3b\u5bfc\u822a\"<\/span>&gt;<\/span>\r\n  <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">ul<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">li<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">a<\/span> <span class=\"hljs-attr\">href<\/span>=<span class=\"hljs-string\">\"#home\"<\/span>&gt;<\/span>\u9996\u9875<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">a<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">li<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">li<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">a<\/span> <span class=\"hljs-attr\">href<\/span>=<span class=\"hljs-string\">\"#about\"<\/span>&gt;<\/span>\u5173\u4e8e\u6211\u4eec<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">a<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">li<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">li<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">a<\/span> <span class=\"hljs-attr\">href<\/span>=<span class=\"hljs-string\">\"#contact\"<\/span>&gt;<\/span>\u8054\u7cfb\u65b9\u5f0f<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">a<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">li<\/span>&gt;<\/span>\r\n  <span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">ul<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">nav<\/span>&gt;<\/span>\r\n\r\n<span class=\"hljs-comment\">&lt;!-- \u4e3a\u8868\u5355\u63a7\u4ef6\u63d0\u4f9b\u6807\u7b7e --&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">label<\/span> <span class=\"hljs-attr\">for<\/span>=<span class=\"hljs-string\">\"username\"<\/span>&gt;<\/span>\u7528\u6237\u540d\uff1a<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">label<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">input<\/span> <span class=\"hljs-attr\">type<\/span>=<span class=\"hljs-string\">\"text\"<\/span> <span class=\"hljs-attr\">id<\/span>=<span class=\"hljs-string\">\"username\"<\/span> <span class=\"hljs-attr\">name<\/span>=<span class=\"hljs-string\">\"username\"<\/span>&gt;<\/span><\/code><\/pre>\n<h3>\u53ef\u7406\u89e3\u6027<\/h2>\n<p>\u53ef\u7406\u89e3\u6027\u539f\u5219\u8981\u6c42\u4fe1\u606f\u548c\u7528\u6237\u754c\u9762\u7684\u64cd\u4f5c\u5fc5\u987b\u662f\u53ef\u7406\u89e3\u7684\u3002<\/p>\n<div>\n<li>\u4f7f\u6587\u672c\u5185\u5bb9\u53ef\u8bfb\u4e14\u53ef\u7406\u89e3<\/li>\n<li>\u4f7f\u7f51\u9875\u4ee5\u53ef\u9884\u6d4b\u7684\u65b9\u5f0f\u51fa\u73b0\u548c\u64cd\u4f5c<\/li>\n<li>\u5e2e\u52a9\u7528\u6237\u907f\u514d\u548c\u7ea0\u6b63\u9519\u8bef<\/li>\n<\/ul>\n<p>\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre><code class=\"language-html hljs language-xml\" data-highlighted=\"yes\"><span class=\"hljs-comment\">&lt;!-- \u4f7f\u7528\u7b80\u5355\u660e\u4e86\u7684\u8bed\u8a00 --&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">p<\/span>&gt;<\/span>\u8bf7\u586b\u5199\u4ee5\u4e0b\u8868\u5355\u4ee5\u6ce8\u518c\u8d26\u6237\u3002\u6240\u6709\u5e26\u661f\u53f7\uff08*\uff09\u7684\u5b57\u6bb5\u4e3a\u5fc5\u586b\u9879\u3002<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">p<\/span>&gt;<\/span>\r\n\r\n<span class=\"hljs-comment\">&lt;!-- \u63d0\u4f9b\u6e05\u6670\u7684\u9519\u8bef\u4fe1\u606f --&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">form<\/span>&gt;<\/span>\r\n  <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">label<\/span> <span class=\"hljs-attr\">for<\/span>=<span class=\"hljs-string\">\"email\"<\/span>&gt;<\/span>\u7535\u5b50\u90ae\u4ef6*\uff1a<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">label<\/span>&gt;<\/span>\r\n  <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">input<\/span> <span class=\"hljs-attr\">type<\/span>=<span class=\"hljs-string\">\"email\"<\/span> <span class=\"hljs-attr\">id<\/span>=<span class=\"hljs-string\">\"email\"<\/span> <span class=\"hljs-attr\">name<\/span>=<span class=\"hljs-string\">\"email\"<\/span> <span class=\"hljs-attr\">required<\/span>&gt;<\/span>\r\n  <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">span<\/span> <span class=\"hljs-attr\">id<\/span>=<span class=\"hljs-string\">\"email-error\"<\/span> <span class=\"hljs-attr\">class<\/span>=<span class=\"hljs-string\">\"error\"<\/span> <span class=\"hljs-attr\">aria-live<\/span>=<span class=\"hljs-string\">\"polite\"<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">span<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">form<\/span>&gt;<\/span>\r\n\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">script<\/span>&gt;<\/span><span class=\"language-javascript\">\r\n<span class=\"hljs-variable language_\">document<\/span>.<span class=\"hljs-title function_\">querySelector<\/span>(<span class=\"hljs-string\">'form'<\/span>).<span class=\"hljs-title function_\">addEventListener<\/span>(<span class=\"hljs-string\">'submit'<\/span>, <span class=\"hljs-keyword\">function<\/span>(<span class=\"hljs-params\">event<\/span>) {\r\n  <span class=\"hljs-keyword\">var<\/span> emailInput = <span class=\"hljs-variable language_\">document<\/span>.<span class=\"hljs-title function_\">getElementById<\/span>(<span class=\"hljs-string\">'email'<\/span>);\r\n  <span class=\"hljs-keyword\">var<\/span> emailError = <span class=\"hljs-variable language_\">document<\/span>.<span class=\"hljs-title function_\">getElementById<\/span>(<span class=\"hljs-string\">'email-error'<\/span>);\r\n  <span class=\"hljs-keyword\">if<\/span> (!emailInput.<span class=\"hljs-property\">validity<\/span>.<span class=\"hljs-property\">valid<\/span>) {\r\n    event.<span class=\"hljs-title function_\">preventDefault<\/span>();\r\n    emailError.<span class=\"hljs-property\">textContent<\/span> = <span class=\"hljs-string\">'\u8bf7\u8f93\u5165\u6709\u6548\u7684\u7535\u5b50\u90ae\u4ef6\u5730\u5740\u3002'<\/span>;\r\n  }\r\n});\r\n<\/span><span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">script<\/span>&gt;<\/span><\/code><\/pre>\n<h3>\u517c\u5bb9\u6027<\/h2>\n<p>\u517c\u5bb9\u6027\u539f\u5219\u786e\u4fdd\u5185\u5bb9\u4e0e\u5f53\u524d\u548c\u672a\u6765\u7684\u7528\u6237\u4ee3\u7406\uff08\u5305\u62ec\u8f85\u52a9\u6280\u672f\uff09\u517c\u5bb9\u3002<\/p>\n<div>\n<li>\u6700\u5927\u5316\u4e0e\u5f53\u524d\u548c\u672a\u6765\u7528\u6237\u4ee3\u7406\u7684\u517c\u5bb9\u6027<\/li>\n<li>\u786e\u4fdd\u65e0\u969c\u788d\u529f\u80fd\u53ef\u4ee5\u88ab\u5173\u95ed<\/li>\n<li>\u4f7f\u7528 WAI-ARIA \u6765\u589e\u5f3a\u53ef\u8bbf\u95ee\u6027<\/li>\n<\/ul>\n<p>\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre><code class=\"language-html hljs language-xml\" data-highlighted=\"yes\"><span class=\"hljs-comment\">&lt;!-- \u4f7f\u7528WAI-ARIA\u89d2\u8272\u548c\u5c5e\u6027 --&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">div<\/span> <span class=\"hljs-attr\">role<\/span>=<span class=\"hljs-string\">\"alert\"<\/span> <span class=\"hljs-attr\">aria-live<\/span>=<span class=\"hljs-string\">\"assertive\"<\/span>&gt;<\/span>\r\n  \u60a8\u7684\u8868\u5355\u5df2\u6210\u529f\u63d0\u4ea4\uff01\r\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">div<\/span>&gt;<\/span>\r\n\r\n<span class=\"hljs-comment\">&lt;!-- \u521b\u5efa\u4e00\u4e2a\u53ef\u8bbf\u95ee\u7684\u4e0b\u62c9\u83dc\u5355 --&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">div<\/span> <span class=\"hljs-attr\">class<\/span>=<span class=\"hljs-string\">\"dropdown\"<\/span>&gt;<\/span>\r\n  <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">button<\/span> <span class=\"hljs-attr\">aria-haspopup<\/span>=<span class=\"hljs-string\">\"true\"<\/span> <span class=\"hljs-attr\">aria-expanded<\/span>=<span class=\"hljs-string\">\"false\"<\/span>&gt;<\/span>\u9009\u9879\u83dc\u5355<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">button<\/span>&gt;<\/span>\r\n  <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">ul<\/span> <span class=\"hljs-attr\">role<\/span>=<span class=\"hljs-string\">\"menu\"<\/span> <span class=\"hljs-attr\">hidden<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">li<\/span> <span class=\"hljs-attr\">role<\/span>=<span class=\"hljs-string\">\"menuitem\"<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">a<\/span> <span class=\"hljs-attr\">href<\/span>=<span class=\"hljs-string\">\"#option1\"<\/span>&gt;<\/span>\u9009\u98791<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">a<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">li<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">li<\/span> <span class=\"hljs-attr\">role<\/span>=<span class=\"hljs-string\">\"menuitem\"<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">a<\/span> <span class=\"hljs-attr\">href<\/span>=<span class=\"hljs-string\">\"#option2\"<\/span>&gt;<\/span>\u9009\u98792<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">a<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">li<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">li<\/span> <span class=\"hljs-attr\">role<\/span>=<span class=\"hljs-string\">\"menuitem\"<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">a<\/span> <span class=\"hljs-attr\">href<\/span>=<span class=\"hljs-string\">\"#option3\"<\/span>&gt;<\/span>\u9009\u98793<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">a<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">li<\/span>&gt;<\/span>\r\n  <span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">ul<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">div<\/span>&gt;<\/span><\/code><\/pre>\n<p>\u901a\u8fc7\u9075\u5faa\u8fd9\u4e9b\u539f\u5219\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u521b\u5efa\u66f4\u52a0\u5305\u5bb9\u548c\u6613\u4e8e\u8bbf\u95ee\u7684\u7f51\u7ad9\uff0c\u786e\u4fdd\u6240\u6709\u7528\u6237\u90fd\u80fd\u591f\u6709\u6548\u5730\u4f7f\u7528\u548c\u7406\u89e3\u7f51\u7ad9\u5185\u5bb9\u3002<\/p>\n<h1>HTML\u8bed\u4e49\u5316<\/h1>\n<p>HTML\u8bed\u4e49\u5316\u662f\u63d0\u9ad8\u7f51\u9875\u53ef\u8bbf\u95ee\u6027\u7684\u5173\u952e\u57fa\u7840\u3002\u5b83\u4e0d\u4ec5\u80fd\u8ba9\u9875\u9762\u7ed3\u6784\u66f4\u52a0\u6e05\u6670\uff0c\u8fd8\u80fd\u5e2e\u52a9\u8f85\u52a9\u6280\u672f\u66f4\u597d\u5730\u7406\u89e3\u548c\u89e3\u91ca\u7f51\u9875\u5185\u5bb9\u3002<\/p>\n<h3>\u6b63\u786e\u4f7f\u7528HTML\u6807\u7b7e<\/h2>\n<p>\u6b63\u786e\u4f7f\u7528HTML\u6807\u7b7e\u662f\u5b9e\u73b0\u8bed\u4e49\u5316\u7684\u7b2c\u4e00\u6b65\u3002\u6bcf\u4e2aHTML\u6807\u7b7e\u90fd\u6709\u5176\u7279\u5b9a\u7684\u8bed\u4e49\u548c\u7528\u9014\uff0c\u5408\u7406\u4f7f\u7528\u8fd9\u4e9b\u6807\u7b7e\u53ef\u4ee5\u4f7f\u7f51\u9875\u7ed3\u6784\u66f4\u52a0\u6e05\u6670\uff0c\u540c\u65f6\u63d0\u9ad8\u53ef\u8bbf\u95ee\u6027\u3002<\/p>\n<p>\u4e00\u4e9b\u5e38\u7528\u7684\u8bed\u4e49\u5316\u6807\u7b7e\u5305\u62ec\uff1a<\/p>\n<div>\n<li><code>&lt;header&gt;<\/code>: \u7528\u4e8e\u9875\u9762\u6216\u533a\u5757\u7684\u5934\u90e8<\/li>\n<li><code>&lt;nav&gt;<\/code>: \u5bfc\u822a\u83dc\u5355<\/li>\n<li><code>&lt;main&gt;<\/code>: \u4e3b\u8981\u5185\u5bb9\u533a\u57df<\/li>\n<li><code>&lt;article&gt;<\/code>: \u72ec\u7acb\u7684\u6587\u7ae0\u5185\u5bb9<\/li>\n<li><code>&lt;section&gt;<\/code>: \u76f8\u5173\u5185\u5bb9\u7684\u533a\u5757<\/li>\n<li><code>&lt;aside&gt;<\/code>: \u4fa7\u8fb9\u680f\u5185\u5bb9<\/li>\n<li><code>&lt;footer&gt;<\/code>: \u9875\u811a<\/li>\n<\/ul>\n<p>\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre><code class=\"language-html hljs language-xml\" data-highlighted=\"yes\"><span class=\"hljs-meta\">&lt;!DOCTYPE <span class=\"hljs-keyword\">html<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">html<\/span> <span class=\"hljs-attr\">lang<\/span>=<span class=\"hljs-string\">\"zh-CN\"<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">head<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">meta<\/span> <span class=\"hljs-attr\">charset<\/span>=<span class=\"hljs-string\">\"utf-8\"<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">title<\/span>&gt;<\/span>\u8bed\u4e49\u5316HTML\u793a\u4f8b<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">title<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">head<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">body<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">header<\/span>&gt;<\/span>\r\n        <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">h1<\/span>&gt;<\/span>\u7f51\u7ad9\u6807\u9898<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">h1<\/span>&gt;<\/span>\r\n        <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">nav<\/span>&gt;<\/span>\r\n            <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">ul<\/span>&gt;<\/span>\r\n                <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">li<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">a<\/span> <span class=\"hljs-attr\">href<\/span>=<span class=\"hljs-string\">\"#home\"<\/span>&gt;<\/span>\u9996\u9875<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">a<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">li<\/span>&gt;<\/span>\r\n                <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">li<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">a<\/span> <span class=\"hljs-attr\">href<\/span>=<span class=\"hljs-string\">\"#about\"<\/span>&gt;<\/span>\u5173\u4e8e<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">a<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">li<\/span>&gt;<\/span>\r\n                <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">li<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">a<\/span> <span class=\"hljs-attr\">href<\/span>=<span class=\"hljs-string\">\"#contact\"<\/span>&gt;<\/span>\u8054\u7cfb\u6211\u4eec<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">a<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">li<\/span>&gt;<\/span>\r\n            <span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">ul<\/span>&gt;<\/span>\r\n        <span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">nav<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">header<\/span>&gt;<\/span>\r\n\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">main<\/span>&gt;<\/span>\r\n        <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">article<\/span>&gt;<\/span>\r\n            <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">h2<\/span>&gt;<\/span>\u6587\u7ae0\u6807\u9898<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">h2<\/span>&gt;<\/span>\r\n            <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">p<\/span>&gt;<\/span>\u6587\u7ae0\u5185\u5bb9...<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">p<\/span>&gt;<\/span>\r\n        <span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">article<\/span>&gt;<\/span>\r\n\r\n        <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">aside<\/span>&gt;<\/span>\r\n            <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">h3<\/span>&gt;<\/span>\u76f8\u5173\u94fe\u63a5<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">h3<\/span>&gt;<\/span>\r\n            <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">ul<\/span>&gt;<\/span>\r\n                <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">li<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">a<\/span> <span class=\"hljs-attr\">href<\/span>=<span class=\"hljs-string\">\"#\"<\/span>&gt;<\/span>\u94fe\u63a51<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">a<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">li<\/span>&gt;<\/span>\r\n                <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">li<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">a<\/span> <span class=\"hljs-attr\">href<\/span>=<span class=\"hljs-string\">\"#\"<\/span>&gt;<\/span>\u94fe\u63a52<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">a<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">li<\/span>&gt;<\/span>\r\n            <span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">ul<\/span>&gt;<\/span>\r\n        <span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">aside<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">main<\/span>&gt;<\/span>\r\n\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">footer<\/span>&gt;<\/span>\r\n        <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">p<\/span>&gt;<\/span>\u00a9 2023 \u516c\u53f8\u540d\u79f0\u3002\u4fdd\u7559\u6240\u6709\u6743\u5229\u3002<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">p<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">footer<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">body<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">html<\/span>&gt;<\/span><\/code><\/pre>\n<h3>ARIA\u5c5e\u6027\u7684\u5e94\u7528<\/h2>\n<p>ARIA\uff08Accessible Rich Internet Applications\uff09\u662f\u4e00\u7ec4\u7528\u4e8e\u589e\u5f3aWeb\u5185\u5bb9\u548c\u5e94\u7528\u7a0b\u5e8f\u53ef\u8bbf\u95ee\u6027\u7684\u5c5e\u6027\u3002\u5b83\u4eec\u53ef\u4ee5\u4e3aHTML\u5143\u7d20\u63d0\u4f9b\u989d\u5916\u7684\u8bed\u4e49\u4fe1\u606f\uff0c\u7279\u522b\u662f\u5bf9\u4e8e\u90a3\u4e9b\u6ca1\u6709\u539f\u751f\u8bed\u4e49\u7684\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u3002<\/p>\n<p>\u5e38\u7528\u7684ARIA\u5c5e\u6027\u5305\u62ec\uff1a<\/p>\n<div>\n<li><code>role<\/code>: \u5b9a\u4e49\u5143\u7d20\u7684\u89d2\u8272<\/li>\n<li><code>aria-label<\/code>: \u4e3a\u5143\u7d20\u63d0\u4f9b\u6807\u7b7e<\/li>\n<li><code>aria-describedby<\/code>: \u6307\u5411\u63cf\u8ff0\u5143\u7d20\u7684ID<\/li>\n<li><code>aria-hidden<\/code>: \u9690\u85cf\u4e0d\u9700\u8981\u88ab\u8f85\u52a9\u6280\u672f\u8bfb\u53d6\u7684\u5143\u7d20<\/li>\n<\/ul>\n<p>\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre><code class=\"language-html hljs language-xml\" data-highlighted=\"yes\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">button<\/span> <span class=\"hljs-attr\">role<\/span>=<span class=\"hljs-string\">\"tab\"<\/span> <span class=\"hljs-attr\">aria-selected<\/span>=<span class=\"hljs-string\">\"true\"<\/span> <span class=\"hljs-attr\">aria-controls<\/span>=<span class=\"hljs-string\">\"panel-1\"<\/span>&gt;<\/span>\r\n    \u6807\u7b7e1\r\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">button<\/span>&gt;<\/span>\r\n\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">div<\/span> <span class=\"hljs-attr\">id<\/span>=<span class=\"hljs-string\">\"search\"<\/span> <span class=\"hljs-attr\">role<\/span>=<span class=\"hljs-string\">\"search\"<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">input<\/span> <span class=\"hljs-attr\">type<\/span>=<span class=\"hljs-string\">\"text\"<\/span> <span class=\"hljs-attr\">aria-label<\/span>=<span class=\"hljs-string\">\"\u641c\u7d22\"<\/span> <span class=\"hljs-attr\">placeholder<\/span>=<span class=\"hljs-string\">\"\u8f93\u5165\u641c\u7d22\u5185\u5bb9\"<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">button<\/span> <span class=\"hljs-attr\">aria-label<\/span>=<span class=\"hljs-string\">\"\u6267\u884c\u641c\u7d22\"<\/span>&gt;<\/span>\u641c\u7d22<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">button<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">div<\/span>&gt;<\/span>\r\n\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">div<\/span> <span class=\"hljs-attr\">class<\/span>=<span class=\"hljs-string\">\"alert\"<\/span> <span class=\"hljs-attr\">role<\/span>=<span class=\"hljs-string\">\"alert\"<\/span> <span class=\"hljs-attr\">aria-live<\/span>=<span class=\"hljs-string\">\"polite\"<\/span>&gt;<\/span>\r\n    \u64cd\u4f5c\u6210\u529f\uff01\r\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">div<\/span>&gt;<\/span>\r\n\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">span<\/span> <span class=\"hljs-attr\">class<\/span>=<span class=\"hljs-string\">\"icon\"<\/span> <span class=\"hljs-attr\">aria-hidden<\/span>=<span class=\"hljs-string\">\"true\"<\/span>&gt;<\/span><span class=\"hljs-symbol\">&amp;#9733;<\/span><span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">span<\/span>&gt;<\/span><\/code><\/pre>\n<h3>\u66ff\u4ee3\u6587\u672c\u7684\u91cd\u8981\u6027<\/h2>\n<p>\u66ff\u4ee3\u6587\u672c\uff08alt text\uff09\u662f\u4e3a\u56fe\u50cf\u3001\u89c6\u9891\u7b49\u975e\u6587\u672c\u5185\u5bb9\u63d0\u4f9b\u6587\u5b57\u63cf\u8ff0\u7684\u91cd\u8981\u65b9\u5f0f\u3002\u5b83\u4e0d\u4ec5\u80fd\u5e2e\u52a9\u89c6\u89c9\u969c\u788d\u7528\u6237\u7406\u89e3\u5185\u5bb9\uff0c\u8fd8\u80fd\u5728\u56fe\u50cf\u65e0\u6cd5\u52a0\u8f7d\u65f6\u63d0\u4f9b\u4fe1\u606f\uff0c\u540c\u65f6\u5bf9SEO\u4e5f\u6709\u79ef\u6781\u5f71\u54cd\u3002<\/p>\n<p>\u5173\u4e8e\u66ff\u4ee3\u6587\u672c\u7684\u51e0\u70b9\u5efa\u8bae\uff1a<\/p>\n<ol>\n<li>\u6240\u6709\u91cd\u8981\u7684\u56fe\u7247\u90fd\u5e94\u8be5\u6709alt\u5c5e\u6027<\/li>\n<li>\u63cf\u8ff0\u5e94\u8be5\u7b80\u6d01\u800c\u51c6\u786e\uff0c\u4f20\u8fbe\u56fe\u50cf\u7684\u4e3b\u8981\u4fe1\u606f<\/li>\n<li>\u88c5\u9970\u6027\u56fe\u7247\u53ef\u4ee5\u4f7f\u7528\u7a7a\u7684alt\u5c5e\u6027\uff08alt=&#8221;&#8221;\uff09<\/li>\n<li>\u590d\u6742\u56fe\u8868\u53ef\u4ee5\u4f7f\u7528<code>longdesc<\/code>\u5c5e\u6027\u94fe\u63a5\u5230\u8be6\u7ec6\u63cf\u8ff0<\/li>\n<\/ol>\n<p>\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre><code class=\"language-html hljs language-xml\" data-highlighted=\"yes\"><span class=\"hljs-comment\">&lt;!-- \u4fe1\u606f\u6027\u56fe\u7247 --&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">img<\/span> <span class=\"hljs-attr\">src<\/span>=<span class=\"hljs-string\">\"company-logo.png\"<\/span> <span class=\"hljs-attr\">alt<\/span>=<span class=\"hljs-string\">\"XX\u516c\u53f8\u6807\u5fd7\"<\/span>&gt;<\/span>\r\n\r\n<span class=\"hljs-comment\">&lt;!-- \u529f\u80fd\u6027\u56fe\u7247 --&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">a<\/span> <span class=\"hljs-attr\">href<\/span>=<span class=\"hljs-string\">\"https:\/\/example.com\"<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">img<\/span> <span class=\"hljs-attr\">src<\/span>=<span class=\"hljs-string\">\"download-icon.png\"<\/span> <span class=\"hljs-attr\">alt<\/span>=<span class=\"hljs-string\">\"\u4e0b\u8f7d\u6309\u94ae\"<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">a<\/span>&gt;<\/span>\r\n\r\n<span class=\"hljs-comment\">&lt;!-- \u88c5\u9970\u6027\u56fe\u7247 --&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">img<\/span> <span class=\"hljs-attr\">src<\/span>=<span class=\"hljs-string\">\"decorative-line.png\"<\/span> <span class=\"hljs-attr\">alt<\/span>=<span class=\"hljs-string\">\"\"<\/span>&gt;<\/span>\r\n\r\n<span class=\"hljs-comment\">&lt;!-- \u590d\u6742\u56fe\u8868 --&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">img<\/span> <span class=\"hljs-attr\">src<\/span>=<span class=\"hljs-string\">\"sales-chart.png\"<\/span> <span class=\"hljs-attr\">alt<\/span>=<span class=\"hljs-string\">\"2023\u5e74\u5b63\u5ea6\u9500\u552e\u6570\u636e\u56fe\u8868\"<\/span> <span class=\"hljs-attr\">longdesc<\/span>=<span class=\"hljs-string\">\"sales-chart-description.html\"<\/span>&gt;<\/span><\/code><\/pre>\n<p>\u901a\u8fc7\u6b63\u786e\u4f7f\u7528HTML\u6807\u7b7e\u3001\u5e94\u7528ARIA\u5c5e\u6027\u548c\u63d0\u4f9b\u6070\u5f53\u7684\u66ff\u4ee3\u6587\u672c\uff0c\u6211\u4eec\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u7f51\u9875\u7684\u53ef\u8bbf\u95ee\u6027\uff0c\u4f7f\u5f97\u5404\u79cd\u7528\u6237\uff0c\u5305\u62ec\u4f7f\u7528\u8f85\u52a9\u6280\u672f\u7684\u7528\u6237\uff0c\u90fd\u80fd\u66f4\u597d\u5730\u8bbf\u95ee\u548c\u7406\u89e3\u7f51\u9875\u5185\u5bb9\u3002<\/p>\n<h1>\u952e\u76d8\u53ef\u8bbf\u95ee\u6027<\/h1>\n<p>\u952e\u76d8\u53ef\u8bbf\u95ee\u6027\u662f\u7f51\u9875\u5f00\u53d1\u4e2d\u7684\u4e00\u4e2a\u91cd\u8981\u65b9\u9762\uff0c\u5b83\u786e\u4fdd\u6240\u6709\u7528\u6237\uff0c\u5305\u62ec\u90a3\u4e9b\u65e0\u6cd5\u4f7f\u7528\u9f20\u6807\u7684\u7528\u6237\uff0c\u90fd\u80fd\u591f\u901a\u8fc7\u952e\u76d8\u64cd\u4f5c\u6765\u8bbf\u95ee\u548c\u4f7f\u7528\u7f51\u7ad9\u7684\u6240\u6709\u529f\u80fd\u3002\u4ee5\u4e0b\u662f\u4e09\u4e2a\u5173\u952e\u7684\u5b50\u4e3b\u9898\uff1a<\/p>\n<h3>\u7126\u70b9\u7ba1\u7406<\/h2>\n<p>\u7126\u70b9\u7ba1\u7406\u662f\u786e\u4fdd\u7528\u6237\u53ef\u4ee5\u6e05\u695a\u5730\u77e5\u9053\u5f53\u524d\u54ea\u4e2a\u5143\u7d20\u88ab\u9009\u4e2d\u7684\u5173\u952e\u3002\u826f\u597d\u7684\u7126\u70b9\u7ba1\u7406\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u66f4\u5bb9\u6613\u5730\u5bfc\u822a\u548c\u64cd\u4f5c\u7f51\u9875\u3002<\/p>\n<p>\u4e3b\u8981\u539f\u5219\uff1a<\/p>\n<ol>\n<li>\u786e\u4fdd\u6240\u6709\u53ef\u4ea4\u4e92\u5143\u7d20\u90fd\u80fd\u63a5\u6536\u7126\u70b9<\/li>\n<li>\u63d0\u4f9b\u6e05\u6670\u53ef\u89c1\u7684\u7126\u70b9\u6307\u793a\u5668<\/li>\n<li>\u7ef4\u62a4\u5408\u7406\u7684\u7126\u70b9\u987a\u5e8f<\/li>\n<\/ol>\n<p>\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre><code class=\"language-css hljs\" data-highlighted=\"yes\"><span class=\"hljs-comment\">\/* \u81ea\u5b9a\u4e49\u7126\u70b9\u6837\u5f0f *\/<\/span>\r\n<span class=\"hljs-selector-pseudo\">:focus<\/span> {\r\n  <span class=\"hljs-attribute\">outline<\/span>: <span class=\"hljs-number\">2px<\/span> solid <span class=\"hljs-number\">#007bff<\/span>;\r\n  <span class=\"hljs-attribute\">box-shadow<\/span>: <span class=\"hljs-number\">0<\/span> <span class=\"hljs-number\">0<\/span> <span class=\"hljs-number\">5px<\/span> <span class=\"hljs-built_in\">rgba<\/span>(<span class=\"hljs-number\">0<\/span>, <span class=\"hljs-number\">123<\/span>, <span class=\"hljs-number\">255<\/span>, <span class=\"hljs-number\">0.5<\/span>);\r\n}\r\n\r\n<span class=\"hljs-comment\">\/* \u53bb\u9664\u9ed8\u8ba4\u7684\u7126\u70b9\u8f6e\u5ed3\uff0c\u4f46\u4fdd\u7559\u53ef\u8bbf\u95ee\u6027 *\/<\/span>\r\n<span class=\"hljs-selector-class\">.custom-focus<\/span><span class=\"hljs-selector-pseudo\">:focus<\/span> {\r\n  <span class=\"hljs-attribute\">outline<\/span>: none;\r\n  <span class=\"hljs-attribute\">box-shadow<\/span>: <span class=\"hljs-number\">0<\/span> <span class=\"hljs-number\">0<\/span> <span class=\"hljs-number\">0<\/span> <span class=\"hljs-number\">3px<\/span> <span class=\"hljs-built_in\">rgba<\/span>(<span class=\"hljs-number\">0<\/span>, <span class=\"hljs-number\">123<\/span>, <span class=\"hljs-number\">255<\/span>, <span class=\"hljs-number\">0.5<\/span>);\r\n}<\/code><\/pre>\n<h3>\u952e\u76d8\u5bfc\u822a<\/h2>\n<p>\u952e\u76d8\u5bfc\u822a\u5141\u8bb8\u7528\u6237\u4f7f\u7528\u952e\u76d8\u5728\u7f51\u9875\u7684\u5404\u4e2a\u5143\u7d20\u4e4b\u95f4\u79fb\u52a8\u3002\u786e\u4fdd\u7528\u6237\u53ef\u4ee5\u4f7f\u7528Tab\u952e\u5728\u6240\u6709\u4ea4\u4e92\u5143\u7d20\u4e4b\u95f4\u5bfc\u822a\uff0c\u5e76\u4e14\u80fd\u591f\u4f7f\u7528Enter\u952e\u6fc0\u6d3b\u8fd9\u4e9b\u5143\u7d20\u3002<\/p>\n<p>\u4e3b\u8981\u539f\u5219\uff1a<\/p>\n<ol>\n<li>\u4f7f\u7528\u6b63\u786e\u7684HTML\u8bed\u4e49\u5143\u7d20<\/li>\n<li>\u786e\u4fdd\u6240\u6709\u529f\u80fd\u90fd\u53ef\u4ee5\u901a\u8fc7\u952e\u76d8\u8bbf\u95ee<\/li>\n<li>\u63d0\u4f9b\u8df3\u8fc7\u91cd\u590d\u5185\u5bb9\u7684\u94fe\u63a5<\/li>\n<\/ol>\n<p>\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre><code class=\"language-html hljs language-xml\" data-highlighted=\"yes\"><span class=\"hljs-comment\">&lt;!-- \u8df3\u8fc7\u5bfc\u822a\u94fe\u63a5 --&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">a<\/span> <span class=\"hljs-attr\">href<\/span>=<span class=\"hljs-string\">\"#main-content\"<\/span> <span class=\"hljs-attr\">class<\/span>=<span class=\"hljs-string\">\"skip-link\"<\/span>&gt;<\/span>\u8df3\u5230\u4e3b\u8981\u5185\u5bb9<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">a<\/span>&gt;<\/span>\r\n\r\n<span class=\"hljs-comment\">&lt;!-- \u5bfc\u822a\u83dc\u5355 --&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">nav<\/span>&gt;<\/span>\r\n  <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">ul<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">li<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">a<\/span> <span class=\"hljs-attr\">href<\/span>=<span class=\"hljs-string\">\"#home\"<\/span>&gt;<\/span>\u9996\u9875<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">a<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">li<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">li<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">a<\/span> <span class=\"hljs-attr\">href<\/span>=<span class=\"hljs-string\">\"#about\"<\/span>&gt;<\/span>\u5173\u4e8e\u6211\u4eec<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">a<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">li<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">li<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">a<\/span> <span class=\"hljs-attr\">href<\/span>=<span class=\"hljs-string\">\"#services\"<\/span>&gt;<\/span>\u670d\u52a1<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">a<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">li<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">li<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">a<\/span> <span class=\"hljs-attr\">href<\/span>=<span class=\"hljs-string\">\"#contact\"<\/span>&gt;<\/span>\u8054\u7cfb\u6211\u4eec<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">a<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">li<\/span>&gt;<\/span>\r\n  <span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">ul<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">nav<\/span>&gt;<\/span>\r\n\r\n<span class=\"hljs-comment\">&lt;!-- \u4e3b\u8981\u5185\u5bb9 --&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">main<\/span> <span class=\"hljs-attr\">id<\/span>=<span class=\"hljs-string\">\"main-content\"<\/span>&gt;<\/span>\r\n  <span class=\"hljs-comment\">&lt;!-- \u9875\u9762\u4e3b\u8981\u5185\u5bb9 --&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">main<\/span>&gt;<\/span><\/code><\/pre>\n<h3>\u5feb\u6377\u952e\u8bbe\u8ba1<\/h2>\n<p>\u5feb\u6377\u952e\u53ef\u4ee5\u5927\u5927\u63d0\u9ad8\u952e\u76d8\u7528\u6237\u7684\u6548\u7387\u3002\u8bbe\u8ba1\u5408\u9002\u7684\u5feb\u6377\u952e\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u5feb\u901f\u8bbf\u95ee\u7f51\u7ad9\u7684\u4e3b\u8981\u529f\u80fd\u3002<\/p>\n<p>\u4e3b\u8981\u539f\u5219\uff1a<\/p>\n<ol>\n<li>\u4f7f\u7528\u76f4\u89c2\u4e14\u6613\u8bb0\u7684\u7ec4\u5408\u952e<\/li>\n<li>\u907f\u514d\u4e0e\u6d4f\u89c8\u5668\u548c\u64cd\u4f5c\u7cfb\u7edf\u7684\u9ed8\u8ba4\u5feb\u6377\u952e\u51b2\u7a81<\/li>\n<li>\u63d0\u4f9b\u5feb\u6377\u952e\u7684\u6587\u6863\u548c\u8bf4\u660e<\/li>\n<\/ol>\n<p>\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre><code class=\"language-javascript hljs\" data-highlighted=\"yes\"><span class=\"hljs-comment\">\/\/ \u4e3a\u7f51\u7ad9\u6dfb\u52a0\u5feb\u6377\u952e<\/span>\r\n<span class=\"hljs-variable language_\">document<\/span>.<span class=\"hljs-title function_\">addEventListener<\/span>(<span class=\"hljs-string\">'keydown'<\/span>, <span class=\"hljs-keyword\">function<\/span>(<span class=\"hljs-params\">event<\/span>) {\r\n  <span class=\"hljs-comment\">\/\/ Ctrl + H\uff1a\u8df3\u8f6c\u5230\u9996\u9875<\/span>\r\n  <span class=\"hljs-keyword\">if<\/span> (event.<span class=\"hljs-property\">ctrlKey<\/span> &amp;&amp; event.<span class=\"hljs-property\">key<\/span> === <span class=\"hljs-string\">'h'<\/span>) {\r\n    event.<span class=\"hljs-title function_\">preventDefault<\/span>();\r\n    <span class=\"hljs-variable language_\">window<\/span>.<span class=\"hljs-property\">location<\/span>.<span class=\"hljs-property\">href<\/span> = <span class=\"hljs-string\">'\/home'<\/span>;\r\n  }\r\n\r\n  <span class=\"hljs-comment\">\/\/ Ctrl + S\uff1a\u6253\u5f00\u641c\u7d22\u680f<\/span>\r\n  <span class=\"hljs-keyword\">if<\/span> (event.<span class=\"hljs-property\">ctrlKey<\/span> &amp;&amp; event.<span class=\"hljs-property\">key<\/span> === <span class=\"hljs-string\">'s'<\/span>) {\r\n    event.<span class=\"hljs-title function_\">preventDefault<\/span>();\r\n    <span class=\"hljs-variable language_\">document<\/span>.<span class=\"hljs-title function_\">getElementById<\/span>(<span class=\"hljs-string\">'search-bar'<\/span>).<span class=\"hljs-title function_\">focus<\/span>();\r\n  }\r\n\r\n  <span class=\"hljs-comment\">\/\/ \u66f4\u591a\u5feb\u6377\u952e...<\/span>\r\n});<\/code><\/pre>\n<p>\u901a\u8fc7\u5b9e\u65bd\u8fd9\u4e9b\u952e\u76d8\u53ef\u8bbf\u95ee\u6027\u7b56\u7565\uff0c\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u7f51\u7ad9\u7684\u6574\u4f53\u53ef\u7528\u6027\uff0c\u4f7f\u5176\u5bf9\u6240\u6709\u7528\u6237\u90fd\u66f4\u52a0\u53cb\u597d\u548c\u6613\u4e8e\u4f7f\u7528\u3002<\/p>\n<h1>\u89c6\u89c9\u8bbe\u8ba1\u4e0e\u65e0\u969c\u788d<\/h1>\n<p>\u89c6\u89c9\u8bbe\u8ba1\u5728\u7f51\u9875\u65e0\u969c\u788d\u5f00\u53d1\u4e2d\u626e\u6f14\u7740\u81f3\u5173\u91cd\u8981\u7684\u89d2\u8272\u3002\u901a\u8fc7\u5408\u7406\u7684\u8bbe\u8ba1\uff0c\u6211\u4eec\u53ef\u4ee5\u786e\u4fdd\u6240\u6709\u7528\u6237\uff0c\u5305\u62ec\u90a3\u4e9b\u89c6\u529b\u53d7\u9650\u6216\u8272\u76f2\u7684\u7528\u6237\uff0c\u90fd\u80fd\u8f7b\u677e\u5730\u8bbf\u95ee\u548c\u7406\u89e3\u7f51\u9875\u5185\u5bb9\u3002\u672c\u8282\u5c06\u63a2\u8ba8\u4e09\u4e2a\u5173\u952e\u65b9\u9762\uff1a\u989c\u8272\u5bf9\u6bd4\u5ea6\u3001\u5b57\u4f53\u9009\u62e9\u4e0e\u5927\u5c0f\uff0c\u4ee5\u53ca\u54cd\u5e94\u5f0f\u8bbe\u8ba1\u8003\u8651\u3002<\/p>\n<h3>\u989c\u8272\u5bf9\u6bd4\u5ea6<\/h2>\n<p>\u989c\u8272\u5bf9\u6bd4\u5ea6\u662f\u6307\u524d\u666f\uff08\u901a\u5e38\u662f\u6587\u672c\uff09\u548c\u80cc\u666f\u4e4b\u95f4\u7684\u4eae\u5ea6\u5dee\u5f02\u3002\u9ad8\u5bf9\u6bd4\u5ea6\u53ef\u4ee5\u63d0\u9ad8\u6587\u672c\u7684\u53ef\u8bfb\u6027\uff0c\u7279\u522b\u662f\u5bf9\u4e8e\u89c6\u529b\u53d7\u9650\u7684\u7528\u6237\u3002<\/p>\n<h3>\u6700\u4f73\u5b9e\u8df5\uff1a<\/h3>\n<ol>\n<li>\u9075\u5faaWCAG 2.1\u6307\u5357\uff0c\u786e\u4fdd\u6587\u672c\u548c\u80cc\u666f\u7684\u5bf9\u6bd4\u5ea6\u81f3\u5c11\u4e3a4.5:1\uff08\u5bf9\u4e8e\u5927\u6587\u672c\uff0c\u53ef\u4ee5\u662f3:1\uff09\u3002<\/li>\n<li>\u4f7f\u7528\u989c\u8272\u5bf9\u6bd4\u5ea6\u68c0\u67e5\u5de5\u5177\u6765\u9a8c\u8bc1\u4f60\u7684\u8bbe\u8ba1\u3002<\/li>\n<li>\u907f\u514d\u4ec5\u4f9d\u8d56\u989c\u8272\u6765\u4f20\u8fbe\u4fe1\u606f\uff0calways\u63d0\u4f9b\u66ff\u4ee3\u65b9\u5f0f\uff08\u5982\u56fe\u6807\u6216\u6587\u672c\u6807\u7b7e\uff09\u3002<\/li>\n<\/ol>\n<h3>\u793a\u4f8b\u4ee3\u7801\uff1a<\/h3>\n<pre><code class=\"language-css hljs\" data-highlighted=\"yes\"><span class=\"hljs-comment\">\/* \u9ad8\u5bf9\u6bd4\u5ea6\u6587\u672c\u6837\u5f0f *\/<\/span>\r\n<span class=\"hljs-selector-class\">.high-contrast-text<\/span> {\r\n    <span class=\"hljs-attribute\">color<\/span>: <span class=\"hljs-number\">#000000<\/span>; <span class=\"hljs-comment\">\/* \u9ed1\u8272\u6587\u672c *\/<\/span>\r\n    <span class=\"hljs-attribute\">background-color<\/span>: <span class=\"hljs-number\">#FFFFFF<\/span>; <span class=\"hljs-comment\">\/* \u767d\u8272\u80cc\u666f *\/<\/span>\r\n}\r\n\r\n<span class=\"hljs-comment\">\/* \u4e3a\u94fe\u63a5\u6dfb\u52a0\u4e0b\u5212\u7ebf\uff0c\u4e0d\u4ec5\u4f9d\u8d56\u989c\u8272 *\/<\/span>\r\n<span class=\"hljs-selector-tag\">a<\/span> {\r\n    <span class=\"hljs-attribute\">color<\/span>: <span class=\"hljs-number\">#0000FF<\/span>; <span class=\"hljs-comment\">\/* \u84dd\u8272\u94fe\u63a5 *\/<\/span>\r\n    <span class=\"hljs-attribute\">text-decoration<\/span>: underline;\r\n}<\/code><\/pre>\n<h3>\u5b57\u4f53\u9009\u62e9\u4e0e\u5927\u5c0f<\/h2>\n<p>\u9009\u62e9\u5408\u9002\u7684\u5b57\u4f53\u548c\u5927\u5c0f\u5bf9\u4e8e\u63d0\u9ad8\u53ef\u8bfb\u6027\u81f3\u5173\u91cd\u8981\uff0c\u5c24\u5176\u662f\u5bf9\u4e8e\u89c6\u529b\u4e0d\u4f73\u7684\u7528\u6237\u3002<\/p>\n<h3>\u6700\u4f73\u5b9e\u8df5\uff1a<\/h3>\n<ol>\n<li>\u4f7f\u7528\u6e05\u6670\u3001\u6613\u8bfb\u7684sans-serif\u5b57\u4f53\u4f5c\u4e3a\u9ed8\u8ba4\u9009\u62e9\u3002<\/li>\n<li>\u8bbe\u7f6e\u57fa\u7840\u5b57\u4f53\u5927\u5c0f\u4e3a16px\u6216\u66f4\u5927\u3002<\/li>\n<li>\u4f7f\u7528\u76f8\u5bf9\u5355\u4f4d\uff08\u5982em\u6216rem\uff09\u6765\u5b9a\u4e49\u5b57\u4f53\u5927\u5c0f\uff0c\u5141\u8bb8\u7528\u6237\u6839\u636e\u9700\u8981\u8c03\u6574\u3002<\/li>\n<li>\u786e\u4fdd\u884c\u9ad8\u9002\u5f53\uff0c\u901a\u5e38\u4e3a1.5\u500d\u5b57\u4f53\u5927\u5c0f\u3002<\/li>\n<\/ol>\n<h3>\u793a\u4f8b\u4ee3\u7801\uff1a<\/h3>\n<pre><code class=\"language-css hljs\" data-highlighted=\"yes\"><span class=\"hljs-selector-tag\">body<\/span> {\r\n    <span class=\"hljs-attribute\">font-family<\/span>: Arial, Helvetica, sans-serif;\r\n    <span class=\"hljs-attribute\">font-size<\/span>: <span class=\"hljs-number\">16px<\/span>; <span class=\"hljs-comment\">\/* \u57fa\u7840\u5b57\u4f53\u5927\u5c0f *\/<\/span>\r\n    <span class=\"hljs-attribute\">line-height<\/span>: <span class=\"hljs-number\">1.5<\/span>;\r\n}\r\n\r\n<span class=\"hljs-selector-tag\">h1<\/span> {\r\n    <span class=\"hljs-attribute\">font-size<\/span>: <span class=\"hljs-number\">2em<\/span>; <span class=\"hljs-comment\">\/* \u76f8\u5bf9\u4e8e\u57fa\u7840\u5b57\u4f53\u5927\u5c0f\u76842\u500d *\/<\/span>\r\n}\r\n\r\n<span class=\"hljs-selector-tag\">p<\/span> {\r\n    <span class=\"hljs-attribute\">font-size<\/span>: <span class=\"hljs-number\">1rem<\/span>; <span class=\"hljs-comment\">\/* 1rem\u7b49\u4e8e\u6839\u5143\u7d20\u7684\u5b57\u4f53\u5927\u5c0f *\/<\/span>\r\n}<\/code><\/pre>\n<h3>\u54cd\u5e94\u5f0f\u8bbe\u8ba1\u8003\u8651<\/h2>\n<p>\u54cd\u5e94\u5f0f\u8bbe\u8ba1\u786e\u4fdd\u7f51\u9875\u5728\u5404\u79cd\u8bbe\u5907\u548c\u5c4f\u5e55\u5c3a\u5bf8\u4e0a\u90fd\u80fd\u6b63\u5e38\u663e\u793a\u548c\u4f7f\u7528\u3002\u8fd9\u5bf9\u4e8e\u65e0\u969c\u788d\u6027\u5c24\u4e3a\u91cd\u8981\uff0c\u56e0\u4e3a\u8bb8\u591a\u7528\u6237\u53ef\u80fd\u4f7f\u7528\u653e\u5927\u5de5\u5177\u6216\u7279\u5b9a\u7684\u8bbe\u5907\u8bbe\u7f6e\u3002<\/p>\n<h3>\u6700\u4f73\u5b9e\u8df5\uff1a<\/h3>\n<ol>\n<li>\u4f7f\u7528\u6d41\u5f0f\u5e03\u5c40\u548c\u5f39\u6027\u76d2\u5b50\uff08Flexbox\uff09\u6216\u7f51\u683c\uff08Grid\uff09\u6765\u521b\u5efa\u7075\u6d3b\u7684\u9875\u9762\u7ed3\u6784\u3002<\/li>\n<li>\u5b9e\u73b0\u53ef\u7f29\u653e\u7684\u6587\u672c\uff0c\u907f\u514d\u4f7f\u7528\u56fa\u5b9a\u7684\u50cf\u7d20\u5c3a\u5bf8\u3002<\/li>\n<li>\u786e\u4fdd\u89e6\u6478\u76ee\u6807\uff08\u5982\u6309\u94ae\u548c\u94fe\u63a5\uff09\u8db3\u591f\u5927\uff0c\u6613\u4e8e\u70b9\u51fb\u3002<\/li>\n<li>\u4f7f\u7528\u5a92\u4f53\u67e5\u8be2\u6765\u8c03\u6574\u5e03\u5c40\u548c\u6837\u5f0f\uff0c\u4ee5\u9002\u5e94\u4e0d\u540c\u7684\u5c4f\u5e55\u5c3a\u5bf8\u3002<\/li>\n<\/ol>\n<h3>\u793a\u4f8b\u4ee3\u7801\uff1a<\/h3>\n<pre><code class=\"language-css hljs\" data-highlighted=\"yes\"><span class=\"hljs-comment\">\/* \u57fa\u672c\u7684\u54cd\u5e94\u5f0f\u5e03\u5c40 *\/<\/span>\r\n<span class=\"hljs-selector-class\">.container<\/span> {\r\n    <span class=\"hljs-attribute\">display<\/span>: flex;\r\n    <span class=\"hljs-attribute\">flex-wrap<\/span>: wrap;\r\n}\r\n\r\n<span class=\"hljs-selector-class\">.column<\/span> {\r\n    <span class=\"hljs-attribute\">flex<\/span>: <span class=\"hljs-number\">1<\/span> <span class=\"hljs-number\">1<\/span> <span class=\"hljs-number\">300px<\/span>; <span class=\"hljs-comment\">\/* \u5f39\u6027\u589e\u957f\u3001\u6536\u7f29\u548c\u57fa\u7840\u5bbd\u5ea6 *\/<\/span>\r\n    <span class=\"hljs-attribute\">margin<\/span>: <span class=\"hljs-number\">10px<\/span>;\r\n}\r\n\r\n<span class=\"hljs-comment\">\/* \u9002\u5e94\u5c0f\u5c4f\u5e55\u7684\u5a92\u4f53\u67e5\u8be2 *\/<\/span>\r\n<span class=\"hljs-keyword\">@media<\/span> screen <span class=\"hljs-keyword\">and<\/span> (<span class=\"hljs-attribute\">max-width<\/span>: <span class=\"hljs-number\">600px<\/span>) {\r\n    <span class=\"hljs-selector-class\">.column<\/span> {\r\n        <span class=\"hljs-attribute\">flex<\/span>: <span class=\"hljs-number\">1<\/span> <span class=\"hljs-number\">1<\/span> <span class=\"hljs-number\">100%<\/span>; <span class=\"hljs-comment\">\/* \u5728\u5c0f\u5c4f\u5e55\u4e0a\u5360\u6ee1\u5bbd\u5ea6 *\/<\/span>\r\n    }\r\n}\r\n\r\n<span class=\"hljs-comment\">\/* \u786e\u4fdd\u89e6\u6478\u76ee\u6807\u8db3\u591f\u5927 *\/<\/span>\r\n<span class=\"hljs-selector-tag\">button<\/span>, <span class=\"hljs-selector-class\">.touch-target<\/span> {\r\n    <span class=\"hljs-attribute\">min-width<\/span>: <span class=\"hljs-number\">44px<\/span>;\r\n    <span class=\"hljs-attribute\">min-height<\/span>: <span class=\"hljs-number\">44px<\/span>;\r\n    <span class=\"hljs-attribute\">padding<\/span>: <span class=\"hljs-number\">10px<\/span>;\r\n}<\/code><\/pre>\n<p>\u901a\u8fc7\u5173\u6ce8\u8fd9\u4e9b\u89c6\u89c9\u8bbe\u8ba1\u65b9\u9762\uff0c\u6211\u4eec\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u7f51\u9875\u7684\u65e0\u969c\u788d\u6027\uff0c\u4f7f\u5176\u5bf9\u6240\u6709\u7528\u6237\u90fd\u66f4\u52a0\u53cb\u597d\u548c\u6613\u7528\u3002\u8bb0\u4f4f\uff0c\u597d\u7684\u65e0\u969c\u788d\u8bbe\u8ba1\u4e0d\u4ec5\u6709\u5229\u4e8e\u7279\u5b9a\u7fa4\u4f53\uff0c\u800c\u4e14\u80fd\u591f\u63d0\u5347\u6240\u6709\u7528\u6237\u7684\u4f7f\u7528\u4f53\u9a8c\u3002<\/p>\n<h1>\u591a\u5a92\u4f53\u65e0\u969c\u788d<\/h1>\n<h3>\u89c6\u9891\u5b57\u5e55\u548c\u97f3\u9891\u63cf\u8ff0<\/h2>\n<p>\u5728\u8fdb\u884c\u7f51\u9875\u65e0\u969c\u788d\u5f00\u53d1\u65f6\uff0c\u4e3a\u89c6\u9891\u5185\u5bb9\u63d0\u4f9b\u5b57\u5e55\u548c\u97f3\u9891\u63cf\u8ff0\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u8fd9\u4e0d\u4ec5\u80fd\u5e2e\u52a9\u542c\u529b\u969c\u788d\u7528\u6237\u7406\u89e3\u89c6\u9891\u5185\u5bb9\uff0c\u8fd8\u80fd\u4e3a\u89c6\u529b\u969c\u788d\u7528\u6237\u63d0\u4f9b\u66f4\u597d\u7684\u4f53\u9a8c\u3002<\/p>\n<h3>\u89c6\u9891\u5b57\u5e55<\/h3>\n<ol>\n<li>\u4f7f\u7528 <code>&lt;track&gt;<\/code> \u5143\u7d20\u4e3a\u89c6\u9891\u6dfb\u52a0\u5b57\u5e55\uff1a<\/li>\n<\/ol>\n<pre><code class=\"language-html hljs language-xml\" data-highlighted=\"yes\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">video<\/span> <span class=\"hljs-attr\">controls<\/span>&gt;<\/span>\r\n  <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">source<\/span> <span class=\"hljs-attr\">src<\/span>=<span class=\"hljs-string\">\"video.mp4\"<\/span> <span class=\"hljs-attr\">type<\/span>=<span class=\"hljs-string\">\"video\/mp4\"<\/span>&gt;<\/span>\r\n  <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">track<\/span> <span class=\"hljs-attr\">kind<\/span>=<span class=\"hljs-string\">\"subtitles\"<\/span> <span class=\"hljs-attr\">src<\/span>=<span class=\"hljs-string\">\"captions.vtt\"<\/span> <span class=\"hljs-attr\">srclang<\/span>=<span class=\"hljs-string\">\"zh\"<\/span> <span class=\"hljs-attr\">label<\/span>=<span class=\"hljs-string\">\"\u4e2d\u6587\"<\/span> <span class=\"hljs-attr\">default<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">video<\/span>&gt;<\/span><\/code><\/pre>\n<ol start=\"2\">\n<li>\u521b\u5efa WebVTT \u683c\u5f0f\u7684\u5b57\u5e55\u6587\u4ef6\uff08captions.vtt\uff09\uff1a<\/li>\n<\/ol>\n<pre><code data-highlighted=\"yes\" class=\"hljs language-lua\">WEBVTT\r\n\r\n<span class=\"hljs-number\">00<\/span>:<span class=\"hljs-number\">00<\/span>:<span class=\"hljs-number\">00.000<\/span> <span class=\"hljs-comment\">--&gt; 00:00:02.000<\/span>\r\n\u6b22\u8fce\u89c2\u770b\u8fd9\u4e2a\u89c6\u9891\u6559\u7a0b\r\n\r\n<span class=\"hljs-number\">00<\/span>:<span class=\"hljs-number\">00<\/span>:<span class=\"hljs-number\">02.500<\/span> <span class=\"hljs-comment\">--&gt; 00:00:05.000<\/span>\r\n\u4eca\u5929\u6211\u4eec\u5c06\u5b66\u4e60\u7f51\u9875\u65e0\u969c\u788d\u5f00\u53d1<\/code><\/pre>\n<h3>\u97f3\u9891\u63cf\u8ff0<\/h3>\n<p>\u4e3a\u89c6\u529b\u969c\u788d\u7528\u6237\u63d0\u4f9b\u97f3\u9891\u63cf\u8ff0\uff0c\u63cf\u8ff0\u89c6\u9891\u4e2d\u7684\u89c6\u89c9\u4fe1\u606f\uff1a<\/p>\n<ol>\n<li>\u521b\u5efa\u5305\u542b\u97f3\u9891\u63cf\u8ff0\u7684\u89c6\u9891\u7248\u672c<\/li>\n<li>\u4f7f\u7528 <code>&lt;track&gt;<\/code> \u5143\u7d20\u6dfb\u52a0\u97f3\u9891\u63cf\u8ff0\uff1a<\/li>\n<\/ol>\n<pre><code class=\"language-html hljs language-xml\" data-highlighted=\"yes\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">video<\/span> <span class=\"hljs-attr\">controls<\/span>&gt;<\/span>\r\n  <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">source<\/span> <span class=\"hljs-attr\">src<\/span>=<span class=\"hljs-string\">\"video.mp4\"<\/span> <span class=\"hljs-attr\">type<\/span>=<span class=\"hljs-string\">\"video\/mp4\"<\/span>&gt;<\/span>\r\n  <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">source<\/span> <span class=\"hljs-attr\">src<\/span>=<span class=\"hljs-string\">\"video_with_description.mp4\"<\/span> <span class=\"hljs-attr\">type<\/span>=<span class=\"hljs-string\">\"video\/mp4\"<\/span>&gt;<\/span>\r\n  <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">track<\/span> <span class=\"hljs-attr\">kind<\/span>=<span class=\"hljs-string\">\"descriptions\"<\/span> <span class=\"hljs-attr\">src<\/span>=<span class=\"hljs-string\">\"descriptions.vtt\"<\/span> <span class=\"hljs-attr\">srclang<\/span>=<span class=\"hljs-string\">\"zh\"<\/span> <span class=\"hljs-attr\">label<\/span>=<span class=\"hljs-string\">\"\u97f3\u9891\u63cf\u8ff0\"<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">video<\/span>&gt;<\/span><\/code><\/pre>\n<h3>\u56fe\u50cf\u7684\u66ff\u4ee3\u6587\u672c<\/h2>\n<p>\u4e3a\u56fe\u50cf\u63d0\u4f9b\u66ff\u4ee3\u6587\u672c\u662f\u786e\u4fdd\u89c6\u529b\u969c\u788d\u7528\u6237\u80fd\u591f\u7406\u89e3\u56fe\u50cf\u5185\u5bb9\u7684\u5173\u952e\u3002<\/p>\n<h3>\u4f7f\u7528 alt \u5c5e\u6027<\/h3>\n<pre><code class=\"language-html hljs language-xml\" data-highlighted=\"yes\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">img<\/span> <span class=\"hljs-attr\">src<\/span>=<span class=\"hljs-string\">\"logo.png\"<\/span> <span class=\"hljs-attr\">alt<\/span>=<span class=\"hljs-string\">\"\u516c\u53f8\u6807\u5fd7\uff1a\u4e00\u6735\u7efd\u653e\u7684\u82b1\"<\/span>&gt;<\/span><\/code><\/pre>\n<h3>\u590d\u6742\u56fe\u50cf\u7684\u63cf\u8ff0<\/h3>\n<p>\u5bf9\u4e8e\u590d\u6742\u7684\u56fe\u50cf\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>aria-describedby<\/code> \u5c5e\u6027\u94fe\u63a5\u5230\u8be6\u7ec6\u63cf\u8ff0\uff1a<\/p>\n<pre><code class=\"language-html hljs language-xml\" data-highlighted=\"yes\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">img<\/span> <span class=\"hljs-attr\">src<\/span>=<span class=\"hljs-string\">\"chart.png\"<\/span> <span class=\"hljs-attr\">alt<\/span>=<span class=\"hljs-string\">\"\u9500\u552e\u6570\u636e\u56fe\u8868\"<\/span> <span class=\"hljs-attr\">aria-describedby<\/span>=<span class=\"hljs-string\">\"chart-description\"<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">p<\/span> <span class=\"hljs-attr\">id<\/span>=<span class=\"hljs-string\">\"chart-description\"<\/span>&gt;<\/span>\u8fd9\u5f20\u56fe\u8868\u5c55\u793a\u4e86\u8fc7\u53bb12\u4e2a\u6708\u7684\u9500\u552e\u8d8b\u52bf\uff0c\u663e\u793a\u9500\u552e\u989d\u9010\u6708\u7a33\u6b65\u589e\u957f\u3002<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">p<\/span>&gt;<\/span><\/code><\/pre>\n<h3>\u88c5\u9970\u6027\u56fe\u50cf<\/h3>\n<p>\u5bf9\u4e8e\u7eaf\u88c5\u9970\u6027\u7684\u56fe\u50cf\uff0c\u4f7f\u7528\u7a7a\u7684 alt \u5c5e\u6027\uff1a<\/p>\n<pre><code class=\"language-html hljs language-xml\" data-highlighted=\"yes\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">img<\/span> <span class=\"hljs-attr\">src<\/span>=<span class=\"hljs-string\">\"decorative-line.png\"<\/span> <span class=\"hljs-attr\">alt<\/span>=<span class=\"hljs-string\">\"\"<\/span>&gt;<\/span><\/code><\/pre>\n<h3>\u975e\u6587\u672c\u5185\u5bb9\u7684\u65e0\u969c\u788d<\/h2>\n<p>\u9664\u4e86\u56fe\u50cf\u548c\u89c6\u9891\uff0c\u8fd8\u6709\u5176\u4ed6\u7c7b\u578b\u7684\u975e\u6587\u672c\u5185\u5bb9\u9700\u8981\u8003\u8651\u65e0\u969c\u788d\u6027\u3002<\/p>\n<h3>\u97f3\u9891\u5185\u5bb9<\/h3>\n<p>\u4e3a\u97f3\u9891\u5185\u5bb9\u63d0\u4f9b\u6587\u5b57\u8bb0\u5f55\uff1a<\/p>\n<pre><code class=\"language-html hljs language-xml\" data-highlighted=\"yes\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">audio<\/span> <span class=\"hljs-attr\">controls<\/span>&gt;<\/span>\r\n  <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">source<\/span> <span class=\"hljs-attr\">src<\/span>=<span class=\"hljs-string\">\"podcast.mp3\"<\/span> <span class=\"hljs-attr\">type<\/span>=<span class=\"hljs-string\">\"audio\/mpeg\"<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">audio<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">a<\/span> <span class=\"hljs-attr\">href<\/span>=<span class=\"hljs-string\">\"podcast-transcript.html\"<\/span>&gt;<\/span>\u67e5\u770b\u97f3\u9891\u6587\u5b57\u8bb0\u5f55<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">a<\/span>&gt;<\/span><\/code><\/pre>\n<h3>SVG \u56fe\u5f62<\/h3>\n<p>\u4e3a SVG \u56fe\u5f62\u6dfb\u52a0\u63cf\u8ff0\u6027\u6587\u672c\uff1a<\/p>\n<pre><code class=\"language-html hljs language-xml\" data-highlighted=\"yes\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">svg<\/span> <span class=\"hljs-attr\">width<\/span>=<span class=\"hljs-string\">\"100\"<\/span> <span class=\"hljs-attr\">height<\/span>=<span class=\"hljs-string\">\"100\"<\/span>&gt;<\/span>\r\n  <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">circle<\/span> <span class=\"hljs-attr\">cx<\/span>=<span class=\"hljs-string\">\"50\"<\/span> <span class=\"hljs-attr\">cy<\/span>=<span class=\"hljs-string\">\"50\"<\/span> <span class=\"hljs-attr\">r<\/span>=<span class=\"hljs-string\">\"40\"<\/span> <span class=\"hljs-attr\">stroke<\/span>=<span class=\"hljs-string\">\"green\"<\/span> <span class=\"hljs-attr\">stroke-width<\/span>=<span class=\"hljs-string\">\"4\"<\/span> <span class=\"hljs-attr\">fill<\/span>=<span class=\"hljs-string\">\"yellow\"<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">title<\/span>&gt;<\/span>\u9ec4\u8272\u5706\u5708\uff0c\u7eff\u8272\u8fb9\u6846<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">title<\/span>&gt;<\/span>\r\n  <span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">circle<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">svg<\/span>&gt;<\/span><\/code><\/pre>\n<h3>\u8868\u683c\u6570\u636e<\/h3>\n<p>\u4f7f\u7528\u9002\u5f53\u7684\u8868\u683c\u6807\u8bb0\u548c\u6458\u8981\uff1a<\/p>\n<pre><code class=\"language-html hljs language-xml\" data-highlighted=\"yes\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">table<\/span>&gt;<\/span>\r\n  <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">caption<\/span>&gt;<\/span>\u6708\u5ea6\u9500\u552e\u62a5\u544a<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">caption<\/span>&gt;<\/span>\r\n  <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">thead<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">tr<\/span>&gt;<\/span>\r\n      <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">th<\/span> <span class=\"hljs-attr\">scope<\/span>=<span class=\"hljs-string\">\"col\"<\/span>&gt;<\/span>\u6708\u4efd<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">th<\/span>&gt;<\/span>\r\n      <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">th<\/span> <span class=\"hljs-attr\">scope<\/span>=<span class=\"hljs-string\">\"col\"<\/span>&gt;<\/span>\u9500\u552e\u989d<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">th<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">tr<\/span>&gt;<\/span>\r\n  <span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">thead<\/span>&gt;<\/span>\r\n  <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">tbody<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">tr<\/span>&gt;<\/span>\r\n      <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">th<\/span> <span class=\"hljs-attr\">scope<\/span>=<span class=\"hljs-string\">\"row\"<\/span>&gt;<\/span>\u4e00\u6708<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">th<\/span>&gt;<\/span>\r\n      <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">td<\/span>&gt;<\/span>10,000\u5143<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">td<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">tr<\/span>&gt;<\/span>\r\n    <span class=\"hljs-comment\">&lt;!-- \u66f4\u591a\u884c... --&gt;<\/span>\r\n  <span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">tbody<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">table<\/span>&gt;<\/span><\/code><\/pre>\n<p>\u901a\u8fc7\u5b9e\u65bd\u8fd9\u4e9b\u591a\u5a92\u4f53\u65e0\u969c\u788d\u6280\u672f\uff0c\u6211\u4eec\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u7f51\u7ad9\u7684\u53ef\u8bbf\u95ee\u6027\uff0c\u786e\u4fdd\u6240\u6709\u7528\u6237\u90fd\u80fd\u83b7\u5f97\u826f\u597d\u7684\u4f53\u9a8c\u3002<\/p>\n<h1>\u8868\u5355\u4e0e\u4ea4\u4e92\u5143\u7d20\u65e0\u969c\u788d<\/h1>\n<h3>\u6807\u7b7e\u548c\u8bf4\u660e\u6587\u5b57<\/h2>\n<p>\u5728\u5f00\u53d1\u65e0\u969c\u788d\u7f51\u9875\u65f6\uff0c\u4e3a\u8868\u5355\u548c\u4ea4\u4e92\u5143\u7d20\u63d0\u4f9b\u6e05\u6670\u7684\u6807\u7b7e\u548c\u8bf4\u660e\u6587\u5b57\u662f\u81f3\u5173\u91cd\u8981\u7684\u3002\u8fd9\u4e0d\u4ec5\u53ef\u4ee5\u5e2e\u52a9\u89c6\u529b\u6b63\u5e38\u7684\u7528\u6237\uff0c\u8fd8\u80fd\u8ba9\u4f7f\u7528\u5c4f\u5e55\u9605\u8bfb\u5668\u7684\u7528\u6237\u66f4\u597d\u5730\u7406\u89e3\u548c\u64cd\u4f5c\u8868\u5355\u3002<\/p>\n<ol>\n<li>\n<p>\u4f7f\u7528<code>&lt;label&gt;<\/code>\u5143\u7d20\uff1a<br \/>\n\u4e3a\u6bcf\u4e2a\u8868\u5355\u63a7\u4ef6\u5173\u8054\u4e00\u4e2a\u6807\u7b7e\uff0c\u53ef\u4ee5\u63d0\u9ad8\u53ef\u8bbf\u95ee\u6027\u3002<\/p>\n<pre><code class=\"language-html hljs language-xml\" data-highlighted=\"yes\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">label<\/span> <span class=\"hljs-attr\">for<\/span>=<span class=\"hljs-string\">\"username\"<\/span>&gt;<\/span>\u7528\u6237\u540d\uff1a<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">label<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">input<\/span> <span class=\"hljs-attr\">type<\/span>=<span class=\"hljs-string\">\"text\"<\/span> <span class=\"hljs-attr\">id<\/span>=<span class=\"hljs-string\">\"username\"<\/span> <span class=\"hljs-attr\">name<\/span>=<span class=\"hljs-string\">\"username\"<\/span>&gt;<\/span><\/code><\/pre>\n<\/li>\n<li>\n<p>\u4f7f\u7528<code>aria-label<\/code>\u5c5e\u6027\uff1a<br \/>\n\u5f53\u65e0\u6cd5\u4f7f\u7528\u53ef\u89c1\u7684\u6807\u7b7e\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528<code>aria-label<\/code>\u5c5e\u6027\u4e3a\u5143\u7d20\u63d0\u4f9b\u63cf\u8ff0\u3002<\/p>\n<pre><code class=\"language-html hljs language-xml\" data-highlighted=\"yes\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">button<\/span> <span class=\"hljs-attr\">aria-label<\/span>=<span class=\"hljs-string\">\"\u5173\u95ed\u5bf9\u8bdd\u6846\"<\/span>&gt;<\/span>X<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">button<\/span>&gt;<\/span><\/code><\/pre>\n<\/li>\n<li>\n<p>\u4f7f\u7528<code>aria-describedby<\/code>\u5c5e\u6027\uff1a<br \/>\n\u4e3a\u8868\u5355\u63a7\u4ef6\u63d0\u4f9b\u989d\u5916\u7684\u8bf4\u660e\u6587\u5b57\u3002<\/p>\n<pre><code class=\"language-html hljs language-xml\" data-highlighted=\"yes\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">label<\/span> <span class=\"hljs-attr\">for<\/span>=<span class=\"hljs-string\">\"password\"<\/span>&gt;<\/span>\u5bc6\u7801\uff1a<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">label<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">input<\/span> <span class=\"hljs-attr\">type<\/span>=<span class=\"hljs-string\">\"password\"<\/span> <span class=\"hljs-attr\">id<\/span>=<span class=\"hljs-string\">\"password\"<\/span> <span class=\"hljs-attr\">name<\/span>=<span class=\"hljs-string\">\"password\"<\/span> <span class=\"hljs-attr\">aria-describedby<\/span>=<span class=\"hljs-string\">\"password-hint\"<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">p<\/span> <span class=\"hljs-attr\">id<\/span>=<span class=\"hljs-string\">\"password-hint\"<\/span>&gt;<\/span>\u5bc6\u7801\u5fc5\u987b\u5305\u542b\u81f3\u5c118\u4e2a\u5b57\u7b26\uff0c\u5305\u62ec\u5927\u5c0f\u5199\u5b57\u6bcd\u548c\u6570\u5b57\u3002<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">p<\/span>&gt;<\/span><\/code><\/pre>\n<\/li>\n<\/ol>\n<h3>\u9519\u8bef\u63d0\u793a\u548c\u9a8c\u8bc1<\/h2>\n<p>\u9002\u5f53\u7684\u9519\u8bef\u63d0\u793a\u548c\u9a8c\u8bc1\u673a\u5236\u53ef\u4ee5\u5e2e\u52a9\u6240\u6709\u7528\u6237\uff0c\u5c24\u5176\u662f\u90a3\u4e9b\u4f7f\u7528\u8f85\u52a9\u6280\u672f\u7684\u7528\u6237\uff0c\u66f4\u5bb9\u6613\u5730\u8bc6\u522b\u548c\u7ea0\u6b63\u8f93\u5165\u9519\u8bef\u3002<\/p>\n<ol>\n<li>\n<p>\u4f7f\u7528<code>aria-invalid<\/code>\u5c5e\u6027\uff1a<br \/>\n\u5f53\u8f93\u5165\u65e0\u6548\u65f6\uff0c\u8bbe\u7f6e<code>aria-invalid=\"true\"<\/code>\u3002<\/p>\n<pre><code class=\"language-html hljs language-xml\" data-highlighted=\"yes\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">input<\/span> <span class=\"hljs-attr\">type<\/span>=<span class=\"hljs-string\">\"email\"<\/span> <span class=\"hljs-attr\">id<\/span>=<span class=\"hljs-string\">\"email\"<\/span> <span class=\"hljs-attr\">name<\/span>=<span class=\"hljs-string\">\"email\"<\/span> <span class=\"hljs-attr\">aria-invalid<\/span>=<span class=\"hljs-string\">\"true\"<\/span>&gt;<\/span><\/code><\/pre>\n<\/li>\n<li>\n<p>\u4f7f\u7528<code>aria-errormessage<\/code>\u5c5e\u6027\uff1a<br \/>\n\u5173\u8054\u9519\u8bef\u6d88\u606f\u4e0e\u8868\u5355\u63a7\u4ef6\u3002<\/p>\n<pre><code class=\"language-html hljs language-xml\" data-highlighted=\"yes\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">label<\/span> <span class=\"hljs-attr\">for<\/span>=<span class=\"hljs-string\">\"email\"<\/span>&gt;<\/span>\u7535\u5b50\u90ae\u7bb1\uff1a<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">label<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">input<\/span> <span class=\"hljs-attr\">type<\/span>=<span class=\"hljs-string\">\"email\"<\/span> <span class=\"hljs-attr\">id<\/span>=<span class=\"hljs-string\">\"email\"<\/span> <span class=\"hljs-attr\">name<\/span>=<span class=\"hljs-string\">\"email\"<\/span> <span class=\"hljs-attr\">aria-invalid<\/span>=<span class=\"hljs-string\">\"true\"<\/span> <span class=\"hljs-attr\">aria-errormessage<\/span>=<span class=\"hljs-string\">\"email-error\"<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">p<\/span> <span class=\"hljs-attr\">id<\/span>=<span class=\"hljs-string\">\"email-error\"<\/span> <span class=\"hljs-attr\">role<\/span>=<span class=\"hljs-string\">\"alert\"<\/span>&gt;<\/span>\u8bf7\u8f93\u5165\u6709\u6548\u7684\u7535\u5b50\u90ae\u7bb1\u5730\u5740<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">p<\/span>&gt;<\/span><\/code><\/pre>\n<\/li>\n<li>\n<p>\u4f7f\u7528<code>role=\"alert\"<\/code>\uff1a<br \/>\n\u4e3a\u52a8\u6001\u751f\u6210\u7684\u9519\u8bef\u6d88\u606f\u6dfb\u52a0\u6b64\u89d2\u8272\uff0c\u4f7f\u5c4f\u5e55\u9605\u8bfb\u5668\u80fd\u591f\u7acb\u5373\u5ba3\u5e03\u5b83\u4eec\u3002<\/p>\n<\/li>\n<\/ol>\n<h3>\u81ea\u5b9a\u4e49\u63a7\u4ef6\u7684\u65e0\u969c\u788d<\/h2>\n<p>\u5bf9\u4e8e\u81ea\u5b9a\u4e49\u7684\u4ea4\u4e92\u63a7\u4ef6\uff0c\u6211\u4eec\u9700\u8981\u7279\u522b\u6ce8\u610f\u786e\u4fdd\u5b83\u4eec\u5bf9\u6240\u6709\u7528\u6237\u90fd\u662f\u53ef\u8bbf\u95ee\u7684\u3002<\/p>\n<ol>\n<li>\n<p>\u4f7f\u7528\u9002\u5f53\u7684ARIA\u89d2\u8272\uff1a<br \/>\n\u4e3a\u81ea\u5b9a\u4e49\u63a7\u4ef6\u5206\u914d\u5408\u9002\u7684\u89d2\u8272\uff0c\u4ee5\u4fbf\u8f85\u52a9\u6280\u672f\u80fd\u591f\u6b63\u786e\u89e3\u91ca\u5b83\u4eec\u3002<\/p>\n<pre><code class=\"language-html hljs language-xml\" data-highlighted=\"yes\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">div<\/span> <span class=\"hljs-attr\">role<\/span>=<span class=\"hljs-string\">\"button\"<\/span> <span class=\"hljs-attr\">tabindex<\/span>=<span class=\"hljs-string\">\"0\"<\/span> <span class=\"hljs-attr\">id<\/span>=<span class=\"hljs-string\">\"custom-button\"<\/span>&gt;<\/span>\u81ea\u5b9a\u4e49\u6309\u94ae<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">div<\/span>&gt;<\/span><\/code><\/pre>\n<\/li>\n<li>\n<p>\u7ba1\u7406\u7126\u70b9\uff1a<br \/>\n\u786e\u4fdd\u81ea\u5b9a\u4e49\u63a7\u4ef6\u53ef\u4ee5\u901a\u8fc7\u952e\u76d8\u8bbf\u95ee\u548c\u64cd\u4f5c\u3002<\/p>\n<pre><code class=\"language-javascript hljs\" data-highlighted=\"yes\"><span class=\"hljs-keyword\">const<\/span> customButton = <span class=\"hljs-variable language_\">document<\/span>.<span class=\"hljs-title function_\">getElementById<\/span>(<span class=\"hljs-string\">'custom-button'<\/span>);\r\n\r\ncustomButton.<span class=\"hljs-title function_\">addEventListener<\/span>(<span class=\"hljs-string\">'keydown'<\/span>, <span class=\"hljs-function\">(<span class=\"hljs-params\">event<\/span>) =&gt;<\/span> {\r\n <span class=\"hljs-keyword\">if<\/span> (event.<span class=\"hljs-property\">key<\/span> === <span class=\"hljs-string\">'Enter'<\/span> || event.<span class=\"hljs-property\">key<\/span> === <span class=\"hljs-string\">' '<\/span>) {\r\n   event.<span class=\"hljs-title function_\">preventDefault<\/span>();\r\n   <span class=\"hljs-comment\">\/\/ \u6267\u884c\u6309\u94ae\u70b9\u51fb\u64cd\u4f5c<\/span>\r\n }\r\n});<\/code><\/pre>\n<\/li>\n<li>\n<p>\u63d0\u4f9b\u72b6\u6001\u53cd\u9988\uff1a<br \/>\n\u4f7f\u7528ARIA\u72b6\u6001\u5c5e\u6027\u6765\u4f20\u8fbe\u63a7\u4ef6\u7684\u5f53\u524d\u72b6\u6001\u3002<\/p>\n<pre><code class=\"language-html hljs language-xml\" data-highlighted=\"yes\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">div<\/span> <span class=\"hljs-attr\">role<\/span>=<span class=\"hljs-string\">\"checkbox\"<\/span> <span class=\"hljs-attr\">tabindex<\/span>=<span class=\"hljs-string\">\"0\"<\/span> <span class=\"hljs-attr\">aria-checked<\/span>=<span class=\"hljs-string\">\"false\"<\/span> <span class=\"hljs-attr\">id<\/span>=<span class=\"hljs-string\">\"custom-checkbox\"<\/span>&gt;<\/span>\u81ea\u5b9a\u4e49\u590d\u9009\u6846<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">div<\/span>&gt;<\/span><\/code><\/pre>\n<pre><code class=\"language-javascript hljs\" data-highlighted=\"yes\"><span class=\"hljs-keyword\">const<\/span> customCheckbox = <span class=\"hljs-variable language_\">document<\/span>.<span class=\"hljs-title function_\">getElementById<\/span>(<span class=\"hljs-string\">'custom-checkbox'<\/span>);\r\n\r\ncustomCheckbox.<span class=\"hljs-title function_\">addEventListener<\/span>(<span class=\"hljs-string\">'click'<\/span>, <span class=\"hljs-function\">() =&gt;<\/span> {\r\n <span class=\"hljs-keyword\">const<\/span> isChecked = customCheckbox.<span class=\"hljs-title function_\">getAttribute<\/span>(<span class=\"hljs-string\">'aria-checked'<\/span>) === <span class=\"hljs-string\">'true'<\/span>;\r\n customCheckbox.<span class=\"hljs-title function_\">setAttribute<\/span>(<span class=\"hljs-string\">'aria-checked'<\/span>, !isChecked);\r\n});<\/code><\/pre>\n<\/li>\n<\/ol>\n<p>\u901a\u8fc7\u9075\u5faa\u8fd9\u4e9b\u539f\u5219\u548c\u6280\u672f\uff0c\u6211\u4eec\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u8868\u5355\u548c\u4ea4\u4e92\u5143\u7d20\u7684\u53ef\u8bbf\u95ee\u6027\uff0c\u786e\u4fdd\u6240\u6709\u7528\u6237\u90fd\u80fd\u987a\u5229\u5730\u4f7f\u7528\u6211\u4eec\u7684\u7f51\u7ad9\u6216\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n<h1>\u8f85\u52a9\u6280\u672f\u517c\u5bb9\u6027<\/h1>\n<p>\u8f85\u52a9\u6280\u672f\u517c\u5bb9\u6027\u662fWeb\u53ef\u8bbf\u95ee\u6027\u5f00\u53d1\u4e2d\u7684\u5173\u952e\u90e8\u5206\uff0c\u5b83\u786e\u4fdd\u7f51\u7ad9\u6216\u5e94\u7528\u7a0b\u5e8f\u80fd\u591f\u4e0e\u5404\u79cd\u8f85\u52a9\u6280\u672f\u65e0\u7f1d\u914d\u5408\uff0c\u4e3a\u6240\u6709\u7528\u6237\u63d0\u4f9b\u826f\u597d\u7684\u4f7f\u7528\u4f53\u9a8c\u3002<\/p>\n<h3>\u5c4f\u5e55\u9605\u8bfb\u5668\u6d4b\u8bd5<\/h2>\n<p>\u5c4f\u5e55\u9605\u8bfb\u5668\u662f\u89c6\u969c\u7528\u6237\u6d4f\u89c8\u7f51\u9875\u7684\u91cd\u8981\u5de5\u5177\u3002\u5f00\u53d1\u8005\u9700\u8981\u786e\u4fdd\u7f51\u9875\u5185\u5bb9\u80fd\u88ab\u5c4f\u5e55\u9605\u8bfb\u5668\u6b63\u786e\u89e3\u8bfb\u548c\u6717\u8bfb\u3002<\/p>\n<h3>\u5173\u952e\u8981\u70b9\uff1a<\/h3>\n<ol>\n<li>\u4f7f\u7528\u8bed\u4e49\u5316HTML\u6807\u7b7e<\/li>\n<li>\u63d0\u4f9b\u9002\u5f53\u7684\u66ff\u4ee3\u6587\u672c<\/li>\n<li>\u786e\u4fdd\u6b63\u786e\u7684\u6807\u9898\u5c42\u7ea7<\/li>\n<li>\u4f7f\u7528ARIA\u5c5e\u6027\u589e\u5f3a\u53ef\u8bbf\u95ee\u6027<\/li>\n<\/ol>\n<h3>\u4ee3\u7801\u793a\u4f8b\uff1a<\/h3>\n<pre><code class=\"language-html hljs language-xml\" data-highlighted=\"yes\"><span class=\"hljs-comment\">&lt;!-- \u4f7f\u7528\u8bed\u4e49\u5316\u6807\u7b7e --&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">nav<\/span>&gt;<\/span>\r\n  <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">ul<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">li<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">a<\/span> <span class=\"hljs-attr\">href<\/span>=<span class=\"hljs-string\">\"#home\"<\/span>&gt;<\/span>\u9996\u9875<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">a<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">li<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">li<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">a<\/span> <span class=\"hljs-attr\">href<\/span>=<span class=\"hljs-string\">\"#about\"<\/span>&gt;<\/span>\u5173\u4e8e\u6211\u4eec<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">a<\/span>&gt;<\/span><span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">li<\/span>&gt;<\/span>\r\n  <span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">ul<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">nav<\/span>&gt;<\/span>\r\n\r\n<span class=\"hljs-comment\">&lt;!-- \u63d0\u4f9b\u66ff\u4ee3\u6587\u672c --&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">img<\/span> <span class=\"hljs-attr\">src<\/span>=<span class=\"hljs-string\">\"logo.png\"<\/span> <span class=\"hljs-attr\">alt<\/span>=<span class=\"hljs-string\">\"\u516c\u53f8\u6807\u5fd7\"<\/span>&gt;<\/span>\r\n\r\n<span class=\"hljs-comment\">&lt;!-- \u6b63\u786e\u7684\u6807\u9898\u5c42\u7ea7 --&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">h1<\/span>&gt;<\/span>\u4e3b\u6807\u9898<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">h1<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">h2<\/span>&gt;<\/span>\u4e8c\u7ea7\u6807\u9898<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">h2<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">h3<\/span>&gt;<\/span>\u4e09\u7ea7\u6807\u9898<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">h3<\/span>&gt;<\/span>\r\n\r\n<span class=\"hljs-comment\">&lt;!-- \u4f7f\u7528ARIA\u5c5e\u6027 --&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">button<\/span> <span class=\"hljs-attr\">aria-label<\/span>=<span class=\"hljs-string\">\"\u5173\u95ed\"<\/span> <span class=\"hljs-attr\">onclick<\/span>=<span class=\"hljs-string\">\"closeModal()\"<\/span>&gt;<\/span>X<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">button<\/span>&gt;<\/span><\/code><\/pre>\n<h3>\u653e\u5927\u955c\u517c\u5bb9\u6027<\/h2>\n<p>\u4e3a\u4f4e\u89c6\u529b\u7528\u6237\u63d0\u4f9b\u826f\u597d\u7684\u653e\u5927\u4f53\u9a8c\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u7f51\u9875\u8bbe\u8ba1\u5e94\u5f53\u8003\u8651\u5230\u5185\u5bb9\u5728\u653e\u5927\u65f6\u7684\u5e03\u5c40\u548c\u53ef\u8bfb\u6027\u3002<\/p>\n<h3>\u5173\u952e\u8981\u70b9\uff1a<\/h3>\n<ol>\n<li>\u4f7f\u7528\u54cd\u5e94\u5f0f\u8bbe\u8ba1<\/li>\n<li>\u907f\u514d\u4f7f\u7528\u56fa\u5b9a\u50cf\u7d20\u5c3a\u5bf8<\/li>\n<li>\u786e\u4fdd\u6587\u672c\u548c\u80cc\u666f\u8272\u5bf9\u6bd4\u5ea6\u8db3\u591f<\/li>\n<li>\u6d4b\u8bd5\u4e0d\u540c\u7f29\u653e\u7ea7\u522b\u4e0b\u7684\u5e03\u5c40<\/li>\n<\/ol>\n<h3>\u4ee3\u7801\u793a\u4f8b\uff1a<\/h3>\n<pre><code class=\"language-css hljs\" data-highlighted=\"yes\"><span class=\"hljs-comment\">\/* \u4f7f\u7528\u54cd\u5e94\u5f0f\u5355\u4f4d *\/<\/span>\r\n<span class=\"hljs-selector-tag\">body<\/span> {\r\n  <span class=\"hljs-attribute\">font-size<\/span>: <span class=\"hljs-number\">16px<\/span>; <span class=\"hljs-comment\">\/* \u57fa\u51c6\u5b57\u4f53\u5927\u5c0f *\/<\/span>\r\n}\r\n\r\n<span class=\"hljs-selector-tag\">h1<\/span> {\r\n  <span class=\"hljs-attribute\">font-size<\/span>: <span class=\"hljs-number\">2em<\/span>; <span class=\"hljs-comment\">\/* \u76f8\u5bf9\u4e8e\u57fa\u51c6\u5b57\u4f53\u76842\u500d\u5927\u5c0f *\/<\/span>\r\n}\r\n\r\n<span class=\"hljs-comment\">\/* \u786e\u4fdd\u8db3\u591f\u7684\u5bf9\u6bd4\u5ea6 *\/<\/span>\r\n<span class=\"hljs-selector-class\">.content<\/span> {\r\n  <span class=\"hljs-attribute\">color<\/span>: <span class=\"hljs-number\">#333<\/span>; <span class=\"hljs-comment\">\/* \u6df1\u7070\u8272\u6587\u672c *\/<\/span>\r\n  <span class=\"hljs-attribute\">background-color<\/span>: <span class=\"hljs-number\">#fff<\/span>; <span class=\"hljs-comment\">\/* \u767d\u8272\u80cc\u666f *\/<\/span>\r\n}\r\n\r\n<span class=\"hljs-comment\">\/* \u54cd\u5e94\u5f0f\u5e03\u5c40 *\/<\/span>\r\n<span class=\"hljs-keyword\">@media<\/span> screen <span class=\"hljs-keyword\">and<\/span> (<span class=\"hljs-attribute\">max-width<\/span>: <span class=\"hljs-number\">600px<\/span>) {\r\n  <span class=\"hljs-selector-class\">.container<\/span> {\r\n    <span class=\"hljs-attribute\">width<\/span>: <span class=\"hljs-number\">100%<\/span>;\r\n    <span class=\"hljs-attribute\">padding<\/span>: <span class=\"hljs-number\">0<\/span> <span class=\"hljs-number\">15px<\/span>;\r\n  }\r\n}<\/code><\/pre>\n<h3>\u8bed\u97f3\u8bc6\u522b\u652f\u6301<\/h2>\n<p>\u8bed\u97f3\u8bc6\u522b\u6280\u672f\u4f7f\u5f97\u7528\u6237\u80fd\u591f\u901a\u8fc7\u8bed\u97f3\u547d\u4ee4\u63a7\u5236\u7f51\u9875\u3002\u786e\u4fdd\u7f51\u9875\u80fd\u591f\u652f\u6301\u8bed\u97f3\u4ea4\u4e92\u662f\u63d0\u9ad8\u53ef\u8bbf\u95ee\u6027\u7684\u91cd\u8981\u65b9\u9762\u3002<\/p>\n<h3>\u5173\u952e\u8981\u70b9\uff1a<\/h3>\n<ol>\n<li>\u4e3a\u6240\u6709\u53ef\u4ea4\u4e92\u5143\u7d20\u63d0\u4f9b\u6e05\u6670\u7684\u6807\u7b7e<\/li>\n<li>\u4f7f\u7528<code>tabindex<\/code>\u5c5e\u6027\u786e\u4fdd\u6b63\u786e\u7684\u7126\u70b9\u987a\u5e8f<\/li>\n<li>\u5b9e\u73b0\u952e\u76d8\u5bfc\u822a\u652f\u6301<\/li>\n<li>\u907f\u514d\u4f7f\u7528\u4f9d\u8d56\u4e8e\u7279\u5b9a\u8bbe\u5907\u7684\u4ea4\u4e92\u65b9\u5f0f<\/li>\n<\/ol>\n<h3>\u4ee3\u7801\u793a\u4f8b\uff1a<\/h3>\n<pre><code class=\"language-html hljs language-xml\" data-highlighted=\"yes\"><span class=\"hljs-comment\">&lt;!-- \u6e05\u6670\u7684\u6807\u7b7e\u548ctabindex --&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">form<\/span>&gt;<\/span>\r\n  <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">label<\/span> <span class=\"hljs-attr\">for<\/span>=<span class=\"hljs-string\">\"username\"<\/span>&gt;<\/span>\u7528\u6237\u540d\uff1a<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">label<\/span>&gt;<\/span>\r\n  <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">input<\/span> <span class=\"hljs-attr\">type<\/span>=<span class=\"hljs-string\">\"text\"<\/span> <span class=\"hljs-attr\">id<\/span>=<span class=\"hljs-string\">\"username\"<\/span> <span class=\"hljs-attr\">name<\/span>=<span class=\"hljs-string\">\"username\"<\/span> <span class=\"hljs-attr\">tabindex<\/span>=<span class=\"hljs-string\">\"1\"<\/span>&gt;<\/span>\r\n\r\n  <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">label<\/span> <span class=\"hljs-attr\">for<\/span>=<span class=\"hljs-string\">\"password\"<\/span>&gt;<\/span>\u5bc6\u7801\uff1a<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">label<\/span>&gt;<\/span>\r\n  <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">input<\/span> <span class=\"hljs-attr\">type<\/span>=<span class=\"hljs-string\">\"password\"<\/span> <span class=\"hljs-attr\">id<\/span>=<span class=\"hljs-string\">\"password\"<\/span> <span class=\"hljs-attr\">name<\/span>=<span class=\"hljs-string\">\"password\"<\/span> <span class=\"hljs-attr\">tabindex<\/span>=<span class=\"hljs-string\">\"2\"<\/span>&gt;<\/span>\r\n\r\n  <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">button<\/span> <span class=\"hljs-attr\">type<\/span>=<span class=\"hljs-string\">\"submit\"<\/span> <span class=\"hljs-attr\">tabindex<\/span>=<span class=\"hljs-string\">\"3\"<\/span>&gt;<\/span>\u767b\u5f55<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">button<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">form<\/span>&gt;<\/span>\r\n\r\n<span class=\"hljs-comment\">&lt;!-- \u952e\u76d8\u5bfc\u822a\u652f\u6301 --&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">script<\/span>&gt;<\/span><span class=\"language-javascript\">\r\n<span class=\"hljs-variable language_\">document<\/span>.<span class=\"hljs-title function_\">addEventListener<\/span>(<span class=\"hljs-string\">'keydown'<\/span>, <span class=\"hljs-keyword\">function<\/span>(<span class=\"hljs-params\">e<\/span>) {\r\n  <span class=\"hljs-keyword\">if<\/span> (e.<span class=\"hljs-property\">key<\/span> === <span class=\"hljs-string\">'Enter'<\/span> &amp;&amp; e.<span class=\"hljs-property\">target<\/span>.<span class=\"hljs-property\">tagName<\/span> === <span class=\"hljs-string\">'BUTTON'<\/span>) {\r\n    e.<span class=\"hljs-property\">target<\/span>.<span class=\"hljs-title function_\">click<\/span>();\r\n  }\r\n});\r\n<\/span><span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">script<\/span>&gt;<\/span><\/code><\/pre>\n<p>\u901a\u8fc7\u5b9e\u65bd\u8fd9\u4e9b\u6280\u672f\u548c\u6700\u4f73\u5b9e\u8df5\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u7f51\u7ad9\u7684\u8f85\u52a9\u6280\u672f\u517c\u5bb9\u6027\uff0c\u4e3a\u6240\u6709\u7528\u6237\u521b\u9020\u66f4\u52a0\u5305\u5bb9\u548c\u65e0\u969c\u788d\u7684\u7f51\u7edc\u4f53\u9a8c\u3002<\/p>\n<h3>\u65e0\u969c\u788d\u4e0eSEO\u7684\u5173\u7cfb<\/h2>\n<p>\u65e0\u969c\u788d\u5f00\u53d1\u548c\u641c\u7d22\u5f15\u64ce\u4f18\u5316\uff08SEO\uff09\u4e4b\u95f4\u5b58\u5728\u7740\u5bc6\u5207\u7684\u5173\u7cfb\u3002\u826f\u597d\u7684\u65e0\u969c\u788d\u5b9e\u8df5\u4e0d\u4ec5\u80fd\u591f\u5e2e\u52a9\u6240\u6709\u7528\u6237\u66f4\u597d\u5730\u8bbf\u95ee\u7f51\u7ad9\u5185\u5bb9\uff0c\u8fd8\u80fd\u63d0\u9ad8\u7f51\u7ad9\u5728\u641c\u7d22\u5f15\u64ce\u4e2d\u7684\u6392\u540d\u3002\u4ee5\u4e0b\u662f\u65e0\u969c\u788d\u5f00\u53d1\u5982\u4f55\u5f71\u54cdSEO\u7684\u51e0\u4e2a\u5173\u952e\u65b9\u9762\uff1a<\/p>\n<ol>\n<li>\n<p>\u8bed\u4e49\u5316HTML\uff1a<\/p>\n<div>\n<li>\u4f7f\u7528\u6b63\u786e\u7684HTML\u6807\u7b7e\u548c\u7ed3\u6784\u6709\u52a9\u4e8e\u641c\u7d22\u5f15\u64ce\u7406\u89e3\u7f51\u9875\u5185\u5bb9<\/li>\n<li>\u8bed\u4e49\u5316\u6807\u7b7e\u5982<code>&lt;header&gt;<\/code>, <code>&lt;nav&gt;<\/code>, <code>&lt;article&gt;<\/code>\u7b49\u4e5f\u6709\u5229\u4e8e\u65e0\u969c\u788d\u8bbf\u95ee<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u6e05\u6670\u7684\u6807\u9898\u7ed3\u6784\uff1a<\/p>\n<div>\n<li>\u4f7f\u7528\u6b63\u786e\u7684\u6807\u9898\u5c42\u7ea7\uff08h1-h6\uff09\u4e0d\u4ec5\u6709\u52a9\u4e8e\u5c4f\u5e55\u9605\u8bfb\u5668\u7528\u6237\u5bfc\u822a\uff0c\u4e5f\u80fd\u8ba9\u641c\u7d22\u5f15\u64ce\u66f4\u597d\u5730\u7406\u89e3\u9875\u9762\u7ed3\u6784<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u63cf\u8ff0\u6027\u94fe\u63a5\u6587\u672c\uff1a<\/p>\n<div>\n<li>\u907f\u514d\u4f7f\u7528&#8221;\u70b9\u51fb\u8fd9\u91cc&#8221;\u7b49\u65e0\u610f\u4e49\u7684\u94fe\u63a5\u6587\u672c\uff0c\u4f7f\u7528\u63cf\u8ff0\u6027\u6587\u672c\u65e2\u6709\u5229\u4e8e\u65e0\u969c\u788d\u8bbf\u95ee\uff0c\u4e5f\u6709\u52a9\u4e8e\u641c\u7d22\u5f15\u64ce\u7406\u89e3\u94fe\u63a5\u76ee\u7684<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u56fe\u7247\u7684\u66ff\u4ee3\u6587\u672c\uff1a<\/p>\n<div>\n<li>\u4e3a\u56fe\u7247\u63d0\u4f9b\u6709\u610f\u4e49\u7684alt\u5c5e\u6027\u4e0d\u4ec5\u5e2e\u52a9\u89c6\u89c9\u969c\u788d\u7528\u6237\u7406\u89e3\u56fe\u7247\u5185\u5bb9\uff0c\u4e5f\u8ba9\u641c\u7d22\u5f15\u64ce\u80fd\u591f\u7d22\u5f15\u56fe\u7247<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u79fb\u52a8\u53cb\u597d\u6027\uff1a<\/p>\n<div>\n<li>\u54cd\u5e94\u5f0f\u8bbe\u8ba1\u65e2\u662f\u65e0\u969c\u788d\u7684\u4e00\u90e8\u5206\uff0c\u4e5f\u662f\u641c\u7d22\u5f15\u64ce\u6392\u540d\u7684\u91cd\u8981\u56e0\u7d20<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u9875\u9762\u52a0\u8f7d\u901f\u5ea6\uff1a<\/p>\n<div>\n<li>\u5feb\u901f\u52a0\u8f7d\u7684\u9875\u9762\u6709\u5229\u4e8e\u6240\u6709\u7528\u6237\uff0c\u5305\u62ec\u4f7f\u7528\u8f85\u52a9\u6280\u672f\u7684\u7528\u6237\uff0c\u540c\u65f6\u4e5f\u662f\u641c\u7d22\u5f15\u64ce\u6392\u540d\u7684\u91cd\u8981\u56e0\u7d20<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u6613\u8bfb\u6027\u548c\u5185\u5bb9\u8d28\u91cf\uff1a<\/p>\n<div>\n<li>\u6e05\u6670\u3001\u7b80\u6d01\u7684\u5185\u5bb9\u6709\u5229\u4e8e\u6240\u6709\u7528\u6237\uff0c\u5305\u62ec\u8ba4\u77e5\u969c\u788d\u7528\u6237\uff0c\u540c\u65f6\u4e5f\u662fSEO\u7684\u91cd\u8981\u56e0\u7d20<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u7f51\u7ad9\u5730\u56fe\u548c\u5bfc\u822a\uff1a<\/p>\n<div>\n<li>\u6e05\u6670\u7684\u7f51\u7ad9\u7ed3\u6784\u548c\u5bfc\u822a\u6709\u52a9\u4e8e\u7528\u6237\u548c\u641c\u7d22\u5f15\u64ce\u722c\u866b\u7406\u89e3\u7f51\u7ad9\u5185\u5bb9\u7ec4\u7ec7<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>ARIA\u5c5e\u6027\u7684\u5408\u7406\u4f7f\u7528\uff1a<\/p>\n<div>\n<li>\u867d\u7136ARIA\u4e3b\u8981\u7528\u4e8e\u589e\u5f3a\u65e0\u969c\u788d\u6027\uff0c\u4f46\u5b83\u4e5f\u53ef\u4ee5\u4e3a\u641c\u7d22\u5f15\u64ce\u63d0\u4f9b\u989d\u5916\u7684\u4e0a\u4e0b\u6587\u4fe1\u606f<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>\u901a\u8fc7\u5173\u6ce8\u8fd9\u4e9b\u65b9\u9762\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u540c\u65f6\u63d0\u9ad8\u7f51\u7ad9\u7684\u65e0\u969c\u788d\u6027\u548c\u641c\u7d22\u5f15\u64ce\u4f18\u5316\u6548\u679c\uff0c\u4ece\u800c\u521b\u9020\u51fa\u66f4\u52a0\u5305\u5bb9\u548c\u6613\u4e8e\u53d1\u73b0\u7684Web\u4f53\u9a8c\u3002<\/p>\n<h1>\u6d4b\u8bd5\u4e0e\u8bc4\u4f30<\/h1>\n<p>\u5728Web\u53ef\u8bbf\u95ee\u6027\u5f00\u53d1\u4e2d\uff0c\u6d4b\u8bd5\u4e0e\u8bc4\u4f30\u662f\u786e\u4fdd\u7f51\u7ad9\u6216\u5e94\u7528\u7a0b\u5e8f\u5bf9\u6240\u6709\u7528\u6237\u90fd\u53ef\u8bbf\u95ee\u7684\u5173\u952e\u6b65\u9aa4\u3002\u672c\u8282\u5c06\u4ecb\u7ecd\u4e09\u79cd\u4e3b\u8981\u7684\u6d4b\u8bd5\u548c\u8bc4\u4f30\u65b9\u6cd5\u3002<\/p>\n<h3>\u81ea\u52a8\u5316\u6d4b\u8bd5\u5de5\u5177<\/h2>\n<p>\u81ea\u52a8\u5316\u6d4b\u8bd5\u5de5\u5177\u53ef\u4ee5\u5feb\u901f\u626b\u63cf\u7f51\u9875\uff0c\u68c0\u6d4b\u6f5c\u5728\u7684\u53ef\u8bbf\u95ee\u6027\u95ee\u9898\u3002\u8fd9\u4e9b\u5de5\u5177\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u5728\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u53ca\u65e9\u53d1\u73b0\u5e76\u4fee\u590d\u95ee\u9898\u3002<\/p>\n<p>\u5e38\u7528\u7684\u81ea\u52a8\u5316\u6d4b\u8bd5\u5de5\u5177\u5305\u62ec\uff1a<\/p>\n<ol>\n<li>\n<p><strong>WAVE (Web Accessibility Evaluation Tool)<\/strong>\uff1a\u4e00\u4e2a\u6d4f\u89c8\u5668\u6269\u5c55\uff0c\u53ef\u4ee5\u76f4\u89c2\u5730\u663e\u793a\u53ef\u8bbf\u95ee\u6027\u9519\u8bef\u548c\u8b66\u544a\u3002<\/p>\n<\/li>\n<li>\n<p><strong>axe<\/strong>\uff1a\u4e00\u4e2a\u5f00\u6e90\u7684\u53ef\u8bbf\u95ee\u6027\u6d4b\u8bd5\u5f15\u64ce\uff0c\u53ef\u4ee5\u96c6\u6210\u5230\u5f00\u53d1\u5de5\u4f5c\u6d41\u7a0b\u4e2d\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u793a\u4f8b\u4ee3\u7801\uff08\u4f7f\u7528axe-core\u5728JavaScript\u4e2d\u8fdb\u884c\u6d4b\u8bd5\uff09\uff1a<\/p>\n<pre><code class=\"language-javascript hljs\" data-highlighted=\"yes\"><span class=\"hljs-comment\">\/\/ \u5f15\u5165axe-core\u5e93<\/span>\r\n<span class=\"hljs-keyword\">import<\/span> axe <span class=\"hljs-keyword\">from<\/span> <span class=\"hljs-string\">'axe-core'<\/span>;\r\n\r\n<span class=\"hljs-comment\">\/\/ \u8fd0\u884c\u53ef\u8bbf\u95ee\u6027\u6d4b\u8bd5<\/span>\r\naxe.<span class=\"hljs-title function_\">run<\/span>(<span class=\"hljs-variable language_\">document<\/span>, <span class=\"hljs-function\">(<span class=\"hljs-params\">err, results<\/span>) =&gt;<\/span> {\r\n  <span class=\"hljs-keyword\">if<\/span> (err) <span class=\"hljs-keyword\">throw<\/span> err;\r\n\r\n  <span class=\"hljs-comment\">\/\/ \u8f93\u51fa\u6d4b\u8bd5\u7ed3\u679c<\/span>\r\n  <span class=\"hljs-variable language_\">console<\/span>.<span class=\"hljs-title function_\">log<\/span>(results.<span class=\"hljs-property\">violations<\/span>);\r\n});<\/code><\/pre>\n<ol start=\"3\">\n<li><strong>Lighthouse<\/strong>\uff1aGoogle Chrome\u5f00\u53d1\u8005\u5de5\u5177\u4e2d\u7684\u4e00\u4e2a\u529f\u80fd\uff0c\u53ef\u4ee5\u751f\u6210\u53ef\u8bbf\u95ee\u6027\u62a5\u544a\u3002<\/li>\n<\/ol>\n<h3>\u624b\u52a8\u6d4b\u8bd5\u65b9\u6cd5<\/h2>\n<p>\u867d\u7136\u81ea\u52a8\u5316\u5de5\u5177\u5f88\u6709\u7528\uff0c\u4f46\u5b83\u4eec\u65e0\u6cd5\u68c0\u6d4b\u6240\u6709\u7684\u53ef\u8bbf\u95ee\u6027\u95ee\u9898\u3002\u624b\u52a8\u6d4b\u8bd5\u662f\u5fc5\u8981\u7684\u8865\u5145\uff0c\u53ef\u4ee5\u53d1\u73b0\u66f4\u5fae\u5999\u6216\u4e0a\u4e0b\u6587\u76f8\u5173\u7684\u95ee\u9898\u3002<\/p>\n<p>\u624b\u52a8\u6d4b\u8bd5\u65b9\u6cd5\u5305\u62ec\uff1a<\/p>\n<ol>\n<li><strong>\u952e\u76d8\u5bfc\u822a\u6d4b\u8bd5<\/strong>\uff1a\u786e\u4fdd\u6240\u6709\u529f\u80fd\u90fd\u53ef\u4ee5\u901a\u8fc7\u952e\u76d8\u8bbf\u95ee\u3002<\/li>\n<li><strong>\u5c4f\u5e55\u9605\u8bfb\u5668\u6d4b\u8bd5<\/strong>\uff1a\u4f7f\u7528\u5c4f\u5e55\u9605\u8bfb\u5668\uff08\u5982NVDA\u6216VoiceOver\uff09\u6d4f\u89c8\u7f51\u7ad9\uff0c\u786e\u4fdd\u5185\u5bb9\u53ef\u88ab\u6b63\u786e\u89e3\u8bfb\u3002<\/li>\n<li><strong>\u989c\u8272\u5bf9\u6bd4\u5ea6\u68c0\u67e5<\/strong>\uff1a\u4f7f\u7528\u5bf9\u6bd4\u5ea6\u68c0\u67e5\u5de5\u5177\u9a8c\u8bc1\u6587\u672c\u548c\u80cc\u666f\u8272\u4e4b\u95f4\u7684\u5bf9\u6bd4\u5ea6\u662f\u5426\u7b26\u5408WCAG\u6807\u51c6\u3002<\/li>\n<li><strong>\u7f29\u653e\u6d4b\u8bd5<\/strong>\uff1a\u68c0\u67e5\u7f51\u7ad9\u5728\u4e0d\u540c\u7f29\u653e\u7ea7\u522b\u4e0b\u7684\u53ef\u7528\u6027\u3002<\/li>\n<li><strong>\u66ff\u4ee3\u6587\u672c\u5ba1\u67e5<\/strong>\uff1a\u786e\u4fdd\u6240\u6709\u975e\u6587\u672c\u5185\u5bb9\u90fd\u6709\u9002\u5f53\u7684\u66ff\u4ee3\u6587\u672c\u63cf\u8ff0\u3002<\/li>\n<\/ol>\n<h3>\u7528\u6237\u6d4b\u8bd5\u548c\u53cd\u9988<\/h2>\n<p>\u6700\u7ec8\uff0c\u771f\u5b9e\u7528\u6237\u7684\u6d4b\u8bd5\u548c\u53cd\u9988\u662f\u6700\u6709\u4ef7\u503c\u7684\u8bc4\u4f30\u65b9\u6cd5\u3002\u8fd9\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u4e86\u89e3\u5b9e\u9645\u4f7f\u7528\u573a\u666f\u4e2d\u7684\u53ef\u8bbf\u95ee\u6027\u95ee\u9898\u3002<\/p>\n<p>\u7528\u6237\u6d4b\u8bd5\u548c\u53cd\u9988\u7684\u65b9\u6cd5\u5305\u62ec\uff1a<\/p>\n<ol>\n<li><strong>\u53ef\u8bbf\u95ee\u6027\u7126\u70b9\u5c0f\u7ec4<\/strong>\uff1a\u9080\u8bf7\u4e0d\u540c\u80fd\u529b\u7684\u7528\u6237\u53c2\u4e0e\u6d4b\u8bd5\u4f1a\u8bdd\u3002<\/li>\n<li><strong>\u7528\u6237\u8bbf\u8c08<\/strong>\uff1a\u4e0e\u4f7f\u7528\u8f85\u52a9\u6280\u672f\u7684\u7528\u6237\u8fdb\u884c\u4e00\u5bf9\u4e00\u8bbf\u8c08\u3002<\/li>\n<li><strong>\u53ef\u7528\u6027\u6d4b\u8bd5<\/strong>\uff1a\u89c2\u5bdf\u7528\u6237\u5b8c\u6210\u7279\u5b9a\u4efb\u52a1\uff0c\u8bb0\u5f55\u4ed6\u4eec\u9047\u5230\u7684\u56f0\u96be\u3002<\/li>\n<li><strong>\u5728\u7ebf\u53cd\u9988\u673a\u5236<\/strong>\uff1a\u5728\u7f51\u7ad9\u4e0a\u63d0\u4f9b\u53cd\u9988\u8868\u5355\u6216\u8054\u7cfb\u65b9\u5f0f\uff0c\u8ba9\u7528\u6237\u62a5\u544a\u53ef\u8bbf\u95ee\u6027\u95ee\u9898\u3002<\/li>\n<li><strong>\u5206\u6790\u7528\u6237\u884c\u4e3a\u6570\u636e<\/strong>\uff1a\u4f7f\u7528\u5206\u6790\u5de5\u5177\u6765\u8bc6\u522b\u53ef\u80fd\u8868\u660e\u5b58\u5728\u53ef\u8bbf\u95ee\u6027\u95ee\u9898\u7684\u4f7f\u7528\u6a21\u5f0f\u3002<\/li>\n<\/ol>\n<p>\u901a\u8fc7\u7ed3\u5408\u8fd9\u4e9b\u6d4b\u8bd5\u548c\u8bc4\u4f30\u65b9\u6cd5\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u5168\u9762\u5730\u8bc4\u4f30\u548c\u6539\u8fdb\u7f51\u7ad9\u7684\u53ef\u8bbf\u95ee\u6027\uff0c\u786e\u4fdd\u4e3a\u6240\u6709\u7528\u6237\u63d0\u4f9b\u5305\u5bb9\u6027\u7684Web\u4f53\u9a8c\u3002<\/p>\n<h1>\u6cd5\u5f8b\u548c\u653f\u7b56\u5408\u89c4<\/h1>\n<p>\u5728\u5168\u7403\u8303\u56f4\u5185\uff0c\u8bb8\u591a\u56fd\u5bb6\u548c\u5730\u533a\u90fd\u5236\u5b9a\u4e86\u7f51\u7edc\u65e0\u969c\u788d\u76f8\u5173\u7684\u6cd5\u5f8b\u6cd5\u89c4\uff0c\u4ee5\u786e\u4fdd\u6b8b\u969c\u4eba\u58eb\u80fd\u591f\u5e73\u7b49\u5730\u8bbf\u95ee\u548c\u4f7f\u7528\u7f51\u7edc\u8d44\u6e90\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4e3b\u8981\u56fd\u5bb6\u548c\u5730\u533a\u7684\u65e0\u969c\u788d\u6cd5\u89c4\uff1a<\/p>\n<ol>\n<li>\n<p>\u4e2d\u56fd\uff1a<\/p>\n<div>\n<li>\u300a\u65e0\u969c\u788d\u73af\u5883\u5efa\u8bbe\u6761\u4f8b\u300b\uff1a\u867d\u7136\u4e3b\u8981\u9488\u5bf9\u7269\u7406\u73af\u5883\uff0c\u4f46\u4e5f\u6db5\u76d6\u4e86\u4fe1\u606f\u65e0\u969c\u788d\u7684\u5185\u5bb9\u3002<\/li>\n<li>\u300a\u4fe1\u606f\u65e0\u969c\u788d\u8eab\u4efd\u6807\u8bc6\u7ba1\u7406\u529e\u6cd5\u300b\uff1a\u63a8\u52a8\u4fe1\u606f\u65e0\u969c\u788d\u5efa\u8bbe\uff0c\u5305\u62ec\u7f51\u7ad9\u7684\u65e0\u969c\u788d\u5316\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u7f8e\u56fd\uff1a<\/p>\n<div>\n<li>\u300a\u7f8e\u56fd\u6b8b\u75be\u4eba\u6cd5\u6848\u300b(ADA)\uff1a\u8981\u6c42\u516c\u5171\u573a\u6240\u548c\u5546\u4e1a\u8bbe\u65bd\u63d0\u4f9b\u65e0\u969c\u788d\u73af\u5883\uff0c\u5305\u62ec\u7f51\u7ad9\u548c\u5728\u7ebf\u670d\u52a1\u3002<\/li>\n<li>\u300a\u5eb7\u590d\u6cd5\u6848\u300b\u7b2c508\u6761\u4fee\u6b63\u6848\uff1a\u8981\u6c42\u8054\u90a6\u673a\u6784\u7684\u7535\u5b50\u548c\u4fe1\u606f\u6280\u672f\u5bf9\u6b8b\u969c\u4eba\u58eb\u53ef\u8bbf\u95ee\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u6b27\u76df\uff1a<\/p>\n<div>\n<li>\u300a\u6b27\u76df\u65e0\u969c\u788d\u6cd5\u6848\u300b(European Accessibility Act)\uff1a\u89c4\u5b9a\u4e86\u4ea7\u54c1\u548c\u670d\u52a1\u7684\u65e0\u969c\u788d\u8981\u6c42\uff0c\u5305\u62ec\u7f51\u7ad9\u548c\u79fb\u52a8\u5e94\u7528\u3002<\/li>\n<li>\u300a\u7f51\u7ad9\u548c\u79fb\u52a8\u5e94\u7528\u65e0\u969c\u788d\u6307\u4ee4\u300b(Web Accessibility Directive)\uff1a\u8981\u6c42\u516c\u5171\u90e8\u95e8\u7f51\u7ad9\u548c\u79fb\u52a8\u5e94\u7528\u7b26\u5408\u65e0\u969c\u788d\u6807\u51c6\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u82f1\u56fd\uff1a<\/p>\n<div>\n<li>\u300a\u5e73\u7b49\u6cd5\u300b(Equality Act 2010)\uff1a\u8981\u6c42\u670d\u52a1\u63d0\u4f9b\u5546\uff08\u5305\u62ec\u7f51\u7ad9\u6240\u6709\u8005\uff09\u505a\u51fa\u5408\u7406\u8c03\u6574\u4ee5\u786e\u4fdd\u6b8b\u969c\u4eba\u58eb\u53ef\u4ee5\u4f7f\u7528\u5176\u670d\u52a1\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u6fb3\u5927\u5229\u4e9a\uff1a<\/p>\n<div>\n<li>\u300a\u6b8b\u75be\u4eba\u6b67\u89c6\u6cd5\u300b(Disability Discrimination Act)\uff1a\u8981\u6c42\u7f51\u7ad9\u548c\u5728\u7ebf\u670d\u52a1\u5bf9\u6b8b\u969c\u4eba\u58eb\u65e0\u969c\u788d\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u52a0\u62ff\u5927\uff1a<\/p>\n<div>\n<li>\u300a\u65e0\u969c\u788d\u52a0\u62ff\u5927\u6cd5\u300b(Accessible Canada Act)\uff1a\u8981\u6c42\u8054\u90a6\u673a\u6784\u548c\u53d7\u8054\u90a6\u76d1\u7ba1\u7684\u79c1\u8425\u90e8\u95e8\u7ec4\u7ec7\u63d0\u4f9b\u65e0\u969c\u788d\u7684\u4fe1\u606f\u548c\u901a\u4fe1\u6280\u672f\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>\u9075\u5b88\u8fd9\u4e9b\u6cd5\u89c4\u4e0d\u4ec5\u662f\u6cd5\u5f8b\u8981\u6c42\uff0c\u4e5f\u662f\u793e\u4f1a\u8d23\u4efb\u7684\u4f53\u73b0\uff0c\u6709\u52a9\u4e8e\u63d0\u9ad8\u7f51\u7ad9\u7684\u53ef\u7528\u6027\u548c\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n<h3>WCAG\u5408\u89c4\u7ea7\u522b<\/h2>\n<p>Web\u5185\u5bb9\u65e0\u969c\u788d\u6307\u5357\uff08WCAG\uff09\u662f\u7531\u4e07\u7ef4\u7f51\u8054\u76df\uff08W3C\uff09\u5236\u5b9a\u7684\u4e00\u7cfb\u5217\u4f7f\u7f51\u7edc\u5185\u5bb9\u66f4\u6613\u4e8e\u8bbf\u95ee\u7684\u5efa\u8bae\u3002WCAG\u5b9a\u4e49\u4e86\u4e09\u4e2a\u7b26\u5408\u6027\u7ea7\u522b\uff0c\u6bcf\u4e2a\u7ea7\u522b\u90fd\u5305\u542b\u4e86\u4e00\u7cfb\u5217\u53ef\u6d4b\u8bd5\u7684\u6210\u529f\u6807\u51c6\uff1a<\/p>\n<ol>\n<li>\n<p>A\u7ea7\uff08\u6700\u4f4e\u7ea7\u522b\uff09<\/p>\n<div>\n<li>\u57fa\u672c\u7684\u65e0\u969c\u788d\u8981\u6c42<\/li>\n<li>\u89e3\u51b3\u4e3b\u8981\u7684\u65e0\u969c\u788d\u969c\u788d<\/li>\n<li>\u76f8\u5bf9\u5bb9\u6613\u5b9e\u73b0<\/li>\n<\/ul>\n<p>\u793a\u4f8b\u8981\u6c42\uff1a<\/p>\n<div>\n<li>\u4e3a\u6240\u6709\u975e\u6587\u672c\u5185\u5bb9\u63d0\u4f9b\u66ff\u4ee3\u6587\u672c<\/li>\n<li>\u4e0d\u4ec5\u4f9d\u8d56\u989c\u8272\u4f20\u8fbe\u4fe1\u606f<\/li>\n<li>\u786e\u4fdd\u6240\u6709\u529f\u80fd\u53ef\u901a\u8fc7\u952e\u76d8\u8bbf\u95ee<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>AA\u7ea7\uff08\u4e2d\u7ea7\uff09<\/p>\n<div>\n<li>\u5305\u542b\u6240\u6709A\u7ea7\u8981\u6c42<\/li>\n<li>\u89e3\u51b3\u4e3b\u8981\u548c\u6b21\u8981\u7684\u65e0\u969c\u788d\u969c\u788d<\/li>\n<li>\u88ab\u5927\u591a\u6570\u65e0\u969c\u788d\u6cd5\u89c4\u91c7\u7528\u4e3a\u6807\u51c6<\/li>\n<\/ul>\n<p>\u793a\u4f8b\u8981\u6c42\uff1a<\/p>\n<div>\n<li>\u63d0\u4f9b\u8db3\u591f\u7684\u989c\u8272\u5bf9\u6bd4\u5ea6<\/li>\n<li>\u5141\u8bb8\u8c03\u6574\u6587\u672c\u5927\u5c0f\u800c\u4e0d\u4e22\u5931\u5185\u5bb9\u6216\u529f\u80fd<\/li>\n<li>\u63d0\u4f9b\u591a\u79cd\u65b9\u5f0f\u6765\u67e5\u627e\u7f51\u9875\u5185\u5bb9<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>AAA\u7ea7\uff08\u6700\u9ad8\u7ea7\u522b\uff09<\/p>\n<div>\n<li>\u5305\u542b\u6240\u6709A\u7ea7\u548cAA\u7ea7\u8981\u6c42<\/li>\n<li>\u63d0\u4f9b\u6700\u5168\u9762\u7684\u65e0\u969c\u788d\u652f\u6301<\/li>\n<li>\u53ef\u80fd\u4e0d\u9002\u7528\u4e8e\u6240\u6709\u7c7b\u578b\u7684\u5185\u5bb9<\/li>\n<\/ul>\n<p>\u793a\u4f8b\u8981\u6c42\uff1a<\/p>\n<div>\n<li>\u63d0\u4f9b\u624b\u8bed\u89c6\u9891\u4f5c\u4e3a\u97f3\u9891\u5185\u5bb9\u7684\u66ff\u4ee3<\/li>\n<li>\u63d0\u4f9b\u6269\u5c55\u7684\u97f3\u9891\u63cf\u8ff0<\/li>\n<li>\u63a7\u5236\u80cc\u666f\u97f3\u9891<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>\u9009\u62e9\u5408\u9002\u7684\u5408\u89c4\u7ea7\u522b\u53d6\u51b3\u4e8e\u60a8\u7684\u76ee\u6807\u53d7\u4f17\u3001\u6cd5\u5f8b\u8981\u6c42\u548c\u8d44\u6e90\u3002\u5927\u591a\u6570\u7ec4\u7ec7\u4ee5AA\u7ea7\u4e3a\u76ee\u6807\uff0c\u56e0\u4e3a\u5b83\u63d0\u4f9b\u4e86\u826f\u597d\u7684\u65e0\u969c\u788d\u6027\uff0c\u540c\u65f6\u5728\u5b9e\u65bd\u4e0a\u66f4\u52a0\u53ef\u884c\u3002<\/p>\n<h3>\u65e0\u969c\u788d\u58f0\u660e\u7684\u7f16\u5199<\/h2>\n<p>\u65e0\u969c\u788d\u58f0\u660e\u662f\u4e00\u4e2a\u91cd\u8981\u6587\u6863\uff0c\u5b83\u5411\u7528\u6237\u4f20\u8fbe\u60a8\u7684\u7f51\u7ad9\u5728\u65e0\u969c\u788d\u65b9\u9762\u7684\u627f\u8bfa\u548c\u5f53\u524d\u72b6\u6001\u3002\u4ee5\u4e0b\u662f\u7f16\u5199\u6709\u6548\u65e0\u969c\u788d\u58f0\u660e\u7684\u6307\u5357\uff1a<\/p>\n<ol>\n<li>\n<p>\u627f\u8bfa\u58f0\u660e<br \/>\n\u5f00\u59cb\u65f6\u660e\u786e\u8868\u8fbe\u60a8\u5bf9\u7f51\u7ad9\u65e0\u969c\u788d\u7684\u627f\u8bfa\u3002\u4f8b\u5982\uff1a<br \/>\n&#8220;\u6211\u4eec\u81f4\u529b\u4e8e\u786e\u4fdd\u6211\u4eec\u7684\u7f51\u7ad9\u5bf9\u6240\u6709\u7528\u6237\u90fd\u662f\u53ef\u8bbf\u95ee\u7684\uff0c\u5305\u62ec\u6b8b\u969c\u4eba\u58eb\u3002&#8221;<\/p>\n<\/li>\n<li>\n<p>\u9075\u5faa\u7684\u6807\u51c6<br \/>\n\u8bf4\u660e\u60a8\u9075\u5faa\u7684\u65e0\u969c\u788d\u6807\u51c6\u3002\u4f8b\u5982\uff1a<br \/>\n&#8220;\u6211\u4eec\u7684\u7f51\u7ad9\u52aa\u529b\u7b26\u5408WCAG 2.1 AA\u7ea7\u6807\u51c6\u3002&#8221;<\/p>\n<\/li>\n<li>\n<p>\u5df2\u77e5\u95ee\u9898<br \/>\n\u8bda\u5b9e\u5730\u5217\u51fa\u5f53\u524d\u5b58\u5728\u7684\u4efb\u4f55\u5df2\u77e5\u65e0\u969c\u788d\u95ee\u9898\uff0c\u4ee5\u53ca\u89e3\u51b3\u8fd9\u4e9b\u95ee\u9898\u7684\u8ba1\u5212\u3002<\/p>\n<\/li>\n<li>\n<p>\u517c\u5bb9\u6027\u4fe1\u606f<br \/>\n\u63d0\u4f9b\u5173\u4e8e\u7f51\u7ad9\u4e0e\u8f85\u52a9\u6280\u672f\u517c\u5bb9\u6027\u7684\u4fe1\u606f\u3002\u4f8b\u5982\uff1a<br \/>\n&#8220;\u6211\u4eec\u7684\u7f51\u7ad9\u5df2\u7ecf\u8fc7\u6d4b\u8bd5\uff0c\u53ef\u4e0e\u4e3b\u6d41\u5c4f\u5e55\u9605\u8bfb\u5668\u548c\u6d4f\u89c8\u5668\u517c\u5bb9\u3002&#8221;<\/p>\n<\/li>\n<li>\n<p>\u53cd\u9988\u673a\u5236<br \/>\n\u63d0\u4f9b\u4e00\u79cd\u65b9\u5f0f\u8ba9\u7528\u6237\u62a5\u544a\u65e0\u969c\u788d\u95ee\u9898\u6216\u8bf7\u6c42\u5e2e\u52a9\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code class=\"language-markdown hljs\" data-highlighted=\"yes\">\u5982\u679c\u60a8\u5728\u4f7f\u7528\u6211\u4eec\u7684\u7f51\u7ad9\u65f6\u9047\u5230\u4efb\u4f55\u65e0\u969c\u788d\u95ee\u9898\uff0c\u8bf7\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u8054\u7cfb\u6211\u4eec\uff1a\r\n<span class=\"hljs-bullet\">-<\/span> \u7535\u5b50\u90ae\u4ef6\uff1aaccessibility@example.com\r\n<span class=\"hljs-bullet\">-<\/span> \u7535\u8bdd\uff1a+86 123 4567 8900<\/code><\/pre>\n<\/li>\n<li>\n<p>\u66f4\u65b0\u65e5\u671f<br \/>\n\u5305\u62ec\u58f0\u660e\u7684\u6700\u540e\u66f4\u65b0\u65e5\u671f\uff0c\u4ee5\u663e\u793a\u4fe1\u606f\u7684\u65f6\u6548\u6027\u3002<\/p>\n<\/li>\n<li>\n<p>\u6301\u7eed\u6539\u8fdb<br \/>\n\u8868\u660e\u60a8\u81f4\u529b\u4e8e\u6301\u7eed\u6539\u8fdb\u7f51\u7ad9\u7684\u65e0\u969c\u788d\u6027\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u793a\u4f8b\u65e0\u969c\u788d\u58f0\u660e\u6846\u67b6\uff1a<\/p>\n<pre><code class=\"language-markdown hljs\" data-highlighted=\"yes\"><span class=\"hljs-section\"># \u7f51\u7ad9\u65e0\u969c\u788d\u58f0\u660e<\/span>\r\n\r\n[\u516c\u53f8\/\u7ec4\u7ec7\u540d\u79f0] \u81f4\u529b\u4e8e\u786e\u4fdd\u6211\u4eec\u7684\u7f51\u7ad9\u5bf9\u6240\u6709\u7528\u6237\u90fd\u662f\u53ef\u8bbf\u95ee\u7684\uff0c\u5305\u62ec\u6b8b\u969c\u4eba\u58eb\u3002\u6211\u4eec\u6b63\u5728\u52aa\u529b\u63d0\u9ad8\u6211\u4eec\u7f51\u7ad9\u7684\u53ef\u8bbf\u95ee\u6027\u6c34\u5e73\uff0c\u5e76\u9075\u5faa Web \u5185\u5bb9\u65e0\u969c\u788d\u6307\u5357\uff08WCAG\uff092.1\u7684AA\u7ea7\u6807\u51c6\u3002\r\n\r\n<span class=\"hljs-section\">## \u5408\u89c4\u72b6\u6001<\/span>\r\n\r\n\u6211\u4eec\u7684\u7f51\u7ad9\u90e8\u5206\u7b26\u5408WCAG 2.1 AA\u7ea7\u6807\u51c6\u3002\u7b26\u5408\u90e8\u5206\u5305\u62ec\uff1a\r\n\r\n<span class=\"hljs-bullet\">-<\/span> [\u5217\u51fa\u7b26\u5408\u7684\u5173\u952e\u65b9\u9762]\r\n\r\n<span class=\"hljs-section\">## \u5df2\u77e5\u95ee\u9898<\/span>\r\n\r\n\u76ee\u524d\uff0c\u6211\u4eec\u7684\u7f51\u7ad9\u5b58\u5728\u4ee5\u4e0b\u5df2\u77e5\u7684\u65e0\u969c\u788d\u95ee\u9898\uff1a\r\n\r\n<span class=\"hljs-bullet\">1.<\/span> [\u95ee\u9898\u63cf\u8ff01]\r\n<span class=\"hljs-bullet\">2.<\/span> [\u95ee\u9898\u63cf\u8ff02]\r\n\r\n\u6211\u4eec\u8ba1\u5212\u5728 [\u65e5\u671f] \u524d\u89e3\u51b3\u8fd9\u4e9b\u95ee\u9898\u3002\r\n\r\n<span class=\"hljs-section\">## \u53cd\u9988\u548c\u8054\u7cfb\u4fe1\u606f<\/span>\r\n\r\n\u6211\u4eec\u6b22\u8fce\u60a8\u7684\u53cd\u9988\u3002\u5982\u679c\u60a8\u5728\u4f7f\u7528\u6211\u4eec\u7684\u7f51\u7ad9\u65f6\u9047\u5230\u4efb\u4f55\u65e0\u969c\u788d\u95ee\u9898\uff0c\u8bf7\u8054\u7cfb\u6211\u4eec\uff1a\r\n\r\n<span class=\"hljs-bullet\">-<\/span> \u7535\u5b50\u90ae\u4ef6\uff1aaccessibility@example.com\r\n<span class=\"hljs-bullet\">-<\/span> \u7535\u8bdd\uff1a+86 123 4567 8900\r\n\r\n<span class=\"hljs-section\">## \u8bc4\u4f30\u65b9\u6cd5<\/span>\r\n\r\n\u6211\u4eec\u7684\u7f51\u7ad9\u4f7f\u7528 [\u5de5\u5177\u540d\u79f0] \u8fdb\u884c\u81ea\u6211\u8bc4\u4f30\uff0c\u5e76\u7531 [\u516c\u53f8\/\u4e2a\u4eba\u540d\u79f0] \u8fdb\u884c\u4e86\u7b2c\u4e09\u65b9\u5ba1\u6838\u3002\r\n\r\n\u672c\u58f0\u660e\u4e8e [\u65e5\u671f] \u521b\u5efa\uff0c\u6700\u540e\u66f4\u65b0\u4e8e [\u65e5\u671f]\u3002<\/code><\/pre>\n<p>\u901a\u8fc7\u63d0\u4f9b\u6e05\u6670\u3001\u8bda\u5b9e\u548c\u8be6\u7ec6\u7684\u65e0\u969c\u788d\u58f0\u660e\uff0c\u60a8\u4e0d\u4ec5\u53ef\u4ee5\u6ee1\u8db3\u6cd5\u5f8b\u8981\u6c42\uff0c\u8fd8\u53ef\u4ee5\u5c55\u793a\u60a8\u5bf9\u6240\u6709\u7528\u6237\u7684\u91cd\u89c6\u548c\u5bf9\u65e0\u969c\u788d\u7684\u627f\u8bfa\u3002<\/p>\n<p><script src=\"https:\/\/cdn.bootcdn.net\/ajax\/libs\/highlight.js\/11.9.0\/highlight.min.js\"><\/script><br \/>\n<script>hljs.highlightAll();<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Web\u65e0\u969c\u788d\u5f00\u53d1\u6559\u7a0b \u76ee\u5f55 Web\u65e0\u969c\u788d\u7b80\u4ecb \u65e0\u969c\u788d\u8bbe\u8ba1\u539f\u5219 HTML\u8bed\u4e49\u5316 \u952e\u76d8\u53ef\u8bbf\u95ee\u6027 \u89c6\u89c9\u8bbe\u8ba1\u4e0e\u65e0\u969c\u788d \u591a\u5a92\u4f53\u65e0\u969c\u788d \u8868\u5355\u4e0e\u4ea4\u4e92\u5143\u7d20\u65e0\u969c\u788d \u8f85\u52a9\u6280\u672f\u517c\u5bb9\u6027 \u6d4b\u8bd5\u4e0e\u8bc4\u4f30 \u6cd5\u5f8b\u548c\u653f\u7b56\u5408\u89c4 \u7f51\u7ad9\u65e0\u969c\u788d\u58f0\u660e Web\u65e0\u969c\u788d\u7b80\u4ecb \u4ec0\u4e48\u662fWeb\u65e0\u969c\u788d Web\u65e0\u969c\u788d\uff08Web Accessibility\uff09\u662f\u6307\u8bbe\u8ba1\u548c\u5f00\u53d1\u7f51\u7ad9\u3001\u5de5\u5177\u548c\u6280\u672f\u65f6\uff0c\u786e\u4fdd\u6240\u6709\u4eba\uff0c\u5305\u62ec\u6b8b\u969c\u4eba\u58eb\uff0c\u90fd\u80fd\u5e73\u7b49\u5730\u8bbf\u95ee\u548c\u4f7f\u7528Web\u5185\u5bb9\u3002\u5b83\u7684\u76ee\u6807\u662f\u6d88\u9664Web\u4f7f\u7528\u4e2d\u7684\u969c\u788d\uff0c\u8ba9\u4e92\u8054\u7f51\u6210\u4e3a\u4e00\u4e2a\u5305\u5bb9\u6027\u66f4\u5f3a\u7684\u7a7a\u95f4\u3002 Web\u65e0\u969c\u788d\u6d89\u53ca\u591a\u4e2a\u65b9\u9762\uff0c\u5305\u62ec\u4f46\u4e0d\u9650\u4e8e\uff1a \u89c6\u89c9\uff1a\u4e3a\u89c6\u529b\u969c\u788d\u8005\u63d0\u4f9b\u5c4f\u5e55\u9605\u8bfb\u5668\u517c\u5bb9\u7684\u5185\u5bb9 \u542c\u89c9\uff1a\u4e3a\u542c\u529b\u969c\u788d\u8005\u63d0\u4f9b\u97f3\u9891\u5185\u5bb9\u7684\u6587\u5b57\u8f6c\u5f55 \u8fd0\u52a8\uff1a\u4e3a\u884c\u52a8\u4e0d\u4fbf &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[6],"tags":[],"_links":{"self":[{"href":"https:\/\/www.195440.com\/wp-json\/wp\/v2\/posts\/3430"}],"collection":[{"href":"https:\/\/www.195440.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.195440.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.195440.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.195440.com\/wp-json\/wp\/v2\/comments?post=3430"}],"version-history":[{"count":3,"href":"https:\/\/www.195440.com\/wp-json\/wp\/v2\/posts\/3430\/revisions"}],"predecessor-version":[{"id":3433,"href":"https:\/\/www.195440.com\/wp-json\/wp\/v2\/posts\/3430\/revisions\/3433"}],"wp:attachment":[{"href":"https:\/\/www.195440.com\/wp-json\/wp\/v2\/media?parent=3430"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.195440.com\/wp-json\/wp\/v2\/categories?post=3430"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.195440.com\/wp-json\/wp\/v2\/tags?post=3430"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}