{"id":5893,"date":"2017-01-20T23:26:09","date_gmt":"2017-01-20T15:26:09","guid":{"rendered":"http:\/\/www.zhangxinxu.com\/wordpress\/?p=5893"},"modified":"2021-08-31T17:36:40","modified_gmt":"2021-08-31T09:36:40","slug":"voiceover-aria-web-accessible-iphone","status":"publish","type":"post","link":"https:\/\/www.zhangxinxu.com\/wordpress\/2017\/01\/voiceover-aria-web-accessible-iphone\/","title":{"rendered":"\u57fa\u4e8eVoiceOver\u7684\u79fb\u52a8web\u7ad9\u65e0\u969c\u788d\u8bbf\u95ee\u5b9e\u6218"},"content":{"rendered":"<p>by <a href=\"http:\/\/www.zhangxinxu.com\/\">zhangxinxu<\/a> from <a href=\"http:\/\/www.zhangxinxu.com\/wordpress\/?p=5893\">http:\/\/www.zhangxinxu.com\/wordpress\/?p=5893<\/a><br \/>\n\u672c\u6587\u53ef\u5168\u6587\u8f6c\u8f7d\uff0c\u4f46\u9700\u5f97\u5230\u539f\u4f5c\u8005\u4e66\u9762\u8bb8\u53ef\uff0c\u540c\u65f6\u4fdd\u7559\u539f\u4f5c\u8005\u548c\u51fa\u5904\uff0c\u6458\u8981\u5f15\u6d41\u5219\u968f\u610f\u3002<\/p>\n<h3>\u4e00\u3001\u4e86\u89e3\u4ec0\u4e48\u662f\u201c\u65e0\u969c\u788d\u8bbf\u95ee\u201d<\/h3>\n<p>\u9996\u5148\u8981\u4e86\u89e3\u4e0b\u4ec0\u4e48\u662f\u201c\u65e0\u969c\u788d\u8bbf\u95ee\u201d\u3002\u5173\u4e8e\u201c\u65e0\u969c\u788d\u8bbf\u95ee\u201d\u5927\u5bb6\u6216\u591a\u6216\u5c11\u90fd\u6709\u6240\u8033\u95fb\uff0c\u4e8e\u662f\u53ef\u80fd\u4f1a\u4ea7\u751f\u8fd9\u4e48\u4e00\u4e2a\u8bef\u89e3\uff0c\u8ba4\u4e3a\u6240\u8c13\u201c\u65e0\u969c\u788d\u8bbf\u95ee\u201d\u5c31\u662f\u8ba9\u89c6\u529b\u6709\u7f3a\u9677\u7684\u4eba\u53ef\u4ee5\u81ea\u5982\u4f7f\u7528\u8bbf\u95ee\u81ea\u5df1\u7684\u4ea7\u54c1\u3002\u5b9e\u9645\u4e0a\uff0c\u201c\u65e0\u969c\u788d\u8bbf\u95ee\u201d\u6db5\u76d6\u7684\u8303\u56f4\u8981\u5e7f\u6cdb\u7684\u591a\u3002<\/p>\n<p>\u6240\u8c13\u201c\u65e0\u969c\u788d\u8bbf\u95ee\u201d\uff0c\u6307\u7684\u662f\u5404\u7c7b\u8bbe\u5907\u5747\u53ef\u4ee5\u65e0\u969c\u788d\u8bbf\u95ee\u3002\u4f8b\u5982\u9f20\u6807\u3001\u952e\u76d8\u3001\u8bfb\u5c4f\u8f6f\u4ef6\u6216\u8bbe\u5907\u7b49\u3002<\/p>\n<p>\u6240\u4ee5\uff0c\u5927\u5bb6\u4e0d\u59a8\u601d\u8003\u8fd9\u4e48\u51e0\u4e2a\u95ee\u9898\uff1f<\/p>\n<ol>\n<li>\n<p>\u5982\u679c\u7528\u6237\u952e\u76d8\u574f\u4e86\uff0c\u53ea\u6709\u9f20\u6807\u8d35\u7ad9\u8fd8\u80fd\u6b63\u5e38\u8bbf\u95ee\u5417\uff1f<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c\u9f20\u6807\u574f\u4e86\uff0c\u53ea\u4f7f\u7528\u952e\u76d8\u8d35\u7ad9\u8fd8\u80fd\u6b63\u5e38\u8bbf\u95ee\u5417\uff1f<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c\u9f20\u6807\u548c\u952e\u76d8\u90fd\u574f\u4e86\uff0c\u53ea\u6709\u9ea6\u514b\u98ce\uff0c\u8d35\u7ad9\u8fd8\u80fd\u6b63\u5e38\u8bbf\u95ee\u5417\uff1f<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c\u7528\u6237\u89c6\u529b\u969c\u788d\uff0c\u901a\u8fc7\u58f0\u97f3\u8bc6\u522b\uff0c\u8d35\u7ad9\u8fd8\u80fd\u6b63\u5e38\u8bbf\u95ee\u5417\uff1f<\/p>\n<\/li>\n<\/ol>\n<p>\u4ee5\u4e0a\u8fd9\u79cd\u573a\u666f\u7684\u9002\u914d\u548c\u652f\u6301\u5c31\u5c5e\u4e8e\u201c\u65e0\u969c\u788d\u8bbf\u95ee\u201d\u6280\u672f\u8303\u7574\u3002\u4e8e\u662f\uff0c\u8bf7\u7ee7\u7eed\u601d\u8003\uff1a<\/p>\n<ol>\n<li>\u4e3a\u4ec0\u4e48\u6309\u94ae\u4e60\u60ef\u4f7f\u7528<code>&lt;a&gt;<\/code>\u6807\u7b7e\uff1f<\/li>\n<li>\u4e3a\u4ec0\u4e48<code>&lt;input&gt;<\/code> focus\u65f6\u5019\u4f1a\u5916\u53d1\u5149\uff1f<\/li>\n<\/ol>\n<p>\u8fd9\u5176\u5b9e\u6d89\u53ca\u5230\u201c\u952e\u76d8\u53ef\u8bbf\u95ee\u6027\u201d\uff0c\u5f53\u7528\u6237\u9f20\u6807\u51fa\u73b0\u5f02\u5e38\uff0c\u6bd4\u65b9\u8bf4\u6211\u7684iMac\u9f20\u6807\u591a\u6b21\u5fd8\u8bb0\u5145\u7535\uff0c\u53ea\u80fd\u952e\u76d8\u64cd\u4f5c\uff0c\u6b64\u65f6\u5f80\u5f80\u90fd\u662f\u4f7f\u7528Tab\u952e\u6309\u987a\u5e8f\uff08\u5982\u679c\u6ca1\u6709\u8bbe\u7f6e<code>tabindex<\/code>\uff09\u8ba9\u63a7\u4ef6\u5143\u7d20\u83b7\u53d6\u7126\u70b9\uff0c\u5e76\u9ed8\u8ba4<code>outline<\/code>\u9ad8\u4eae\u3002<\/p>\n<p>\u6240\u4ee5\uff0c\u5bf9\u4e8eto C\u4e5f\u5c31\u662f\u9762\u5411\u5927\u4f17\u7528\u6237\u7684\u7f51\u7ad9\uff0c\u4f7f\u7528\u5982\u4e0b\u7684CSS\u662f\u975e\u5e38\u4e1a\u4f59\u7684\uff1a<\/p>\n<pre>* { outline: 0 none; }<\/pre>\n<p>\u4f46\u662f\uff0c\u6709\u5c0f\u4f19\u4f34\u4f1a\u5410\u69fd\u4e86\uff1a\u201c\u6211\u4e5f\u4e0d\u60f3\u53bb\u6389\u554a\uff0c\u4f46\u662f\u8bbe\u8ba1\u5e08\u770b\u4e0d\u60ef\u9ed8\u8ba4\u7684\u53d1\u5149\u6548\u679c\u554a\uff01\u201d<\/p>\n<p>\u5982\u679c\u662f\u5bf9\u6548\u679c\u4e0d\u6ee1\u610f\uff0c\u90a3\u597d\u529e\uff0c\u6539\u6210\u8bbe\u8ba1\u5e08\u559c\u6b22\u7684<code>focus<\/code>\u6548\u679c\u5c31\u597d\u4e86\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>input { \r\n  outline: 0, none;\r\n}\r\ninput:focus { \r\n  border-color: HighLight;\r\n}\r\n<\/pre>\n<p>\u8fd8\u6709\u5c31\u662f\u201c\u6309\u94ae\u4e60\u60ef\u4f7f\u7528<code>&lt;a&gt;<\/code>\u6807\u7b7e\u201d\u7684\u95ee\u9898\uff0c\u6309\u94ae\u4f7f\u7528<code>&lt;button&gt;<\/code>\u662f\u8bed\u4e49\u5316\u548c\u53ef\u8bbf\u95ee\u6027\u6700\u597d\u7684\uff0c\u4f46\u662f\uff0c<code>&lt;button&gt;<\/code>\u7684UI\u517c\u5bb9\u6027\u4e0d\u592a\u597d\uff0c\u5373\u4f7f\u73b0\u4ee3\u6d4f\u89c8\u5668\u4e0b\u4e5f\u662f\u5982\u6b64\u3002\u56e0\u4e3a\u9700\u8981\u4f7f\u7528\u5176\u4ed6\u975e\u66ff\u6362\u5143\u7d20\u6807\u7b7e\uff0c\u5982\u679c\u5355\u770bUI\u6837\u5f0f\uff0c\u4f7f\u7528<code>&lt;span&gt;<\/code>\uff0c<code>&lt;div&gt;<\/code>\u6807\u7b7e\u90fd\u662f\u53ef\u4ee5\u7684\uff0c\u7136\u800c\uff0c\u8fd9\u4e24\u4e2a\u6807\u7b7e\u7684\u95ee\u9898\u5728\u4e8e\uff0c\u9ed8\u8ba4\u72b6\u6001\u4e0b\uff0c\u662f\u65e0\u6cd5\u88ab\u952e\u76d8<code>focus<\/code>\u7684\uff0c\u56e0\u6b64\uff0c\u6211\u4eec\u5c31\u4f7f\u7528<code>&lt;a&gt;<\/code>\u6807\u7b7e\u6765\u5199\u6309\u94ae\uff0c\u517c\u987eUI\u517c\u5bb9\u548c\u952e\u76d8\u53ef\u8bbf\u95ee\u6027\u3002<\/p>\n<p>\u6807\u7b7e\uff08\u6ce8\u610f<code>href<\/code>\u5c5e\u6027\u5fc5\u987b\u6709\uff09\u3002\u4f46\u662f\uff0c\u6211\u8981\u8f6c\u6298\u4e86\uff0c\u6bd5\u7adf<code>&lt;a&gt;<\/code>\u6807\u7b7e\u8bed\u4e49\u662f\u94fe\u63a5\uff0c\u56e0\u6b64\uff0c\u5728\u5c4f\u5e55\u9605\u8bfb\u8bbe\u5907\u6216\u8bfb\u5c4f\u8f6f\u4ef6\u90a3\u91cc\u4f1a\u88ab\u8bfb\u505a\u201c\u94fe\u63a5\u201d\uff0c\u800c\u975e\u201c\u6309\u94ae\u201d\uff0c\u8fd9\u5bf9\u4e8e\u7528\u6237\u800c\u8a00\u663e\u7136\u5c31\u662f\u8bef\u5bfc\uff0c\u90a3\u8be5\u600e\u4e48\u529e\u5462\uff1f\u8bd5\u8bd5\u589e\u52a0\u4e00\u4e2a<code>role=\"button\"<\/code>\uff1a<\/p>\n<pre>&lt;a href role=\"button\"&gt;<\/pre>\n<p>\u8fd9\u91cc\u51fa\u73b0\u7684<code>role<\/code>\u5c5e\u6027\u5c31\u662f<a href=\"http:\/\/www.zhangxinxu.com\/wordpress\/?p=2277\" target=\"_blank\">ARIA HTML\u65e0\u969c\u788d\u8bbf\u95ee<\/a>\u4e2d\u6700\u5e38\u7528\u7684\u5c5e\u6027\u4e4b\u4e00\u3002<\/p>\n<h3>\u4e8c\u3001\u4e86\u89e3\u65e0\u969c\u788d\u8bbf\u95ee\u4e2d\u7684ARIA<\/h3>\n<p>ARIA\u5168\u79f0\u201cAccessible Rich Internet Applications\uff08\u53ef\u8bbf\u95ee\u7684\u5bcc\u4e92\u8054\u7f51\u5e94\u7528\uff09\u201d\uff0c\u5728\u5f53\u4e0b\u8ba8\u8bbaARIA\u57fa\u672c\u4e0a\u90fd\u662f\u4e3a\u8bfb\u5c4f\u8bbe\u5907\u6216\u8f6f\u4ef6\uff0c\u800c\u8bfb\u5c4f\u8bbe\u5907\u6216\u8f6f\u4ef6\u7684\u4f7f\u7528\u8005\u591a\u662f\u89c6\u529b\u969c\u788d\u4eba\u5458\uff0c\u56e0\u6b64\uff0cARIA\u7ea6\u5b9a\u4fd7\u6210\u5c31\u6210\u4e86\u5bf9\u89c6\u969c\u7528\u6237\u7684\u65e0\u969c\u788d\u8bbf\u95ee\u652f\u6301\u6280\u672f\u7684\u4ee3\u79f0\u4e86\u3002<\/p>\n<p>\u9996\u5148\uff0c\u4e86\u89e3\u4e0b\u5e38\u89c1\u7684\u8bfb\u5c4f\u8f6f\u4ef6\uff0c\u5982\u4e0b\u5217\u8868\uff1a<\/p>\n<p>\u79fb\u52a8\u7aef\uff1a<\/p>\n<ul>\n<li>Android: TalkBack<\/li>\n<li>Android: Funtouch<\/li>\n<li>iPhone: VoiceOver<\/li>\n<\/ul>\n<p>\u684c\u9762\u7aef\uff1a<\/p>\n<ul>\n<li>Windows:  NVDA, JAWS<\/li>\n<li>Chrome:  ChromeVox<\/li>\n<li>OSX: VoiceOver<\/li>\n<\/ul>\n<p>\u7531\u4e8e\u672c\u4eba\u7cbe\u529b\u6709\u9650\uff0c\u56e0\u6b64\uff0c\u76ee\u524d\u4ec5\u8bd5\u9a8c\u4e86\u79fb\u52a8\u7aef-iPhone-VoiceOver\uff0ciOS 10.*.*\u7248\u672c\u4e0b\u7684ARIA\u652f\u6301\u60c5\u51b5\u3002\u5bf9\u4e8e\u5176\u4ed6\u8f6f\u4ef6\uff0c\u6211\u731c\u60f3\u5e94\u8be5\u90fd\u662f\u7c7b\u4f3c\u7684\uff0c\u6bd5\u7adf\u6709<a href=\"https:\/\/www.w3.org\/TR\/html-aria\/\" target=\"_blank\"><\/a>\u89c4\u8303\u5728\u90a3\u91cc\u3002<\/p>\n<p>ARIA\u89c4\u8303\u8fd8\u5728\u4e0d\u65ad\u66f4\u65b0\u4e2d\uff0c\u4e14\u76f8\u5f53\u79ef\u6781\uff0c\u56e0\u6b64\uff0c\u89c4\u8303\u5f80\u5f80\u4f1a\u6bd4\u8f6f\u4ef6\u7684\u652f\u6301\u8d85\u524d\uff0c\u56e0\u6b64\uff0c\u672c\u6587\u4e0b\u9762\u7684\u5185\u5bb9\u4e0d\u6d89\u53ca\u65b0\u7684\u5c5e\u6027\u7279\u6027\u3002<\/p>\n<p>ARIA\u603b\u5171\u67093\u5927\u90e8\u5206\u7ec4\u6210\uff0c\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>role\u5c5e\u6027\u503c<\/li>\n<li>aria\u5c5e\u6027<\/li>\n<li>aria\u72b6\u6001\u5c5e\u6027<\/li>\n<\/ol>\n<p>\u6211\u4e4b\u524d\u7684\u6587\u7ae0\u201c<a href=\"http:\/\/www.zhangxinxu.com\/wordpress\/?p=2277\">WAI-ARIA\u65e0\u969c\u788d\u7f51\u9875\u5e94\u7528\u5c5e\u6027\u5b8c\u5168\u5c55\u793a<\/a>\u201d\u6709\u975e\u5e38\u8be6\u5c3d\u7684\u7ffb\u8bd1\u5c55\u793a\uff0c\u6211\u8fd9\u91cc\u5217\u4e3e\u4e00\u4e9b\u5e38\u7528\u7684\uff1a<\/p>\n<h4>role\u5c5e\u6027\u503c<\/h4>\n<pre>role=\"tab\",\r\nrole=\"button\",\r\nrole=\"radio\",\r\nrole=\"checkbox\",\r\nrole=\"link\",\r\n\u2026\r\n<\/pre>\n<h4>aria\u5c5e\u6027<\/h4>\n<pre>aria-haspopup,\r\naria-label,\r\naria-owns\r\n\u2026\r\n<\/pre>\n<h4>aria\u72b6\u6001\u5c5e\u6027<\/h4>\n<pre>aria-checked,\r\naria-checked,,\r\naria-selected,\r\naria-expanded,,,\r\naria-hidden,,\r\naria-invalid,\r\n\u2026\r\n<\/pre>\n<p>\u597d\uff0c\u70ed\u8eab\u5b8c\u6bd5\uff0c\u4e0b\u9762\u5f00\u59cb\u672c\u6587\u7684\u91cd\u70b9\u4e86\uff0c\u57fa\u4e8eVoiceOver\u7684\u79fb\u52a8web\u7ad9\u65e0\u969c\u788d\u8bbf\u95ee\u5b9e\u6218\u3002<\/p>\n<h3>\u4e09\u3001\u57fa\u4e8eVoiceOver\u7684\u79fb\u52a8web\u7ad9\u65e0\u969c\u788d\u8bbf\u95ee\u5b9e\u6218<\/h3>\n<h4>\u5982\u4f55\u5f00\u542fiPhone\u7684VoiceOver\uff1f<\/h4>\n<p>\u6700\u5feb\u6377\u7684\u662f\u4f7f\u7528siri\uff0c\u201c\u6253\u5f00VoiceOver\u201d\uff0c\u5982\u679csiri\u5356\u840c\u8bf4\u4e0d\u77e5\u9053VoiceOver\u662f\u4ec0\u4e48\u9b3c\uff1f\u90a3\u5c31\u624b\u52a8\u5f00\u59cb\uff0c\u8def\u5f84\u4e3a\uff1a\u8bbe\u7f6e\u2192\u901a\u7528\u2192\u8f85\u52a9\u529f\u80fd\u2192VoiceOver\uff08\u5728\u7b2c\u4e00\u4e2a\uff0c\u89c1\u4e0b\u56fe\uff09<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201701\/2017-01-20_173535.png\" alt=\"iPhone VoiceOver\u4f4d\u7f6e\" width=\"320\" height=\"569\"><\/p>\n<p>\u5728iPhone\u4e0aVoiceOver\u5f00\u59cb\u540e\uff0c\u64cd\u4f5c\u65b9\u5f0f\u6709\u4e2a\u6839\u672c\u7684\u53d8\u5316\uff1a<\/p>\n<ol>\n<li><code>touchstart<\/code>\u6216<code>touchmove<\/code>\u884c\u4e3a\u5b8c\u5168\u53d8\u6210\u4e86\u5185\u5bb9\u8bc6\u522b\u4e0e\u8bfb\u53d6\uff0c\u6ca1\u6709\u4efb\u4f55web\u4ea4\u4e92\u884c\u4e3a\u7684\u53d1\u751f\uff01<\/li>\n<li>\u5982\u679c\u4f60\u60f3\u70b9\u51fb\u67d0\u5143\u7d20\uff0c\u5fc5\u987b\u5148<code>touchstart<\/code>\u6216<code>touchmove<\/code>\u9009\u4e2d\uff0c\u7136\u540e\u518d\u53cc\u51fb\uff0c\u76f4\u63a5\u53cc\u51fb\u662f\u6ca1\u6709\u7528\u7684\uff1b<\/li>\n<li>\u5982\u679c\u4f60\u60f3\u6eda\u52a8\uff0c\u4e09\u6307\u6ed1\u52a8\uff1b<\/li>\n<li>\u5982\u679c\u4f60\u60f3\u62d6\u52a8\u6ed1\u5757\uff0c\u5148<code>touchstart<\/code>\u6216<code>touchmove<\/code>\u9009\u4e2d\uff0c\u7136\u540e\u8fde\u7eed\u8f7b\u89e6\u5e76\u6ed1\u52a8\uff08\u624b\u6307\u4e0d\u8981\u62ac\u8d77\uff09\uff1b<\/li>\n<\/ol>\n<p>\u6240\u4ee5\uff0c\u5f88\u591a\u4eba\u4e0d\u5c0f\u5fc3\u6253\u5f00VoiceOver\u540e\u53d1\u73b0\u5173\u4e0d\u4e86\u4e86\uff0c\u5c31\u662f\u56e0\u4e3a\u8fd8\u662f\u8001\u7684\u64cd\u4f5c\u4e60\u60ef\u3002\u60f3\u8981\u5173\u95ed\uff0c\u6700\u5feb\u6377siri\uff1b\u5982\u679c\u53ea\u5356\u840c\u4e0d\u884c\u52a8\uff0c\u90a3\u5c31\u624b\u52a8\u6309\u90e8\u5c31\u73ed\u5173\u95ed\uff1a\uff08\u8f7b\u89e6\uff0c\u518d\u53cc\u51fb\uff09\u8bbe\u7f6e\u2192\uff08\u8f7b\u89e6\uff0c\u518d\u53cc\u51fb\uff09\u901a\u7528\u2192\uff08\u8f7b\u89e6\uff0c\u518d\u53cc\u51fb\uff09\u8f85\u52a9\u529f\u80fd\u2192\uff08\u8f7b\u89e6\uff0c\u518d\u53cc\u51fb\uff09VoiceOver->\uff08\u8f7b\u89e6\uff0c\u518d\u53cc\u51fb\uff09\u5173\u95ed\u3002<\/p>\n<h4>VoiceOver\u4e0b\u65e0\u969c\u788d\u8bbf\u95ee\u57fa\u7840\u7279\u6027<\/h4>\n<p>\u9996\u5148\uff0c\u5927\u5bb6\u5e94\u8be5\u90fd\u77e5\u9053\uff0cHTML\u5143\u7d20\u8fd8\u53ef\u4ee5\u5206\u4e3a\u975e\u66ff\u6362\u5143\u7d20\u548c\u66ff\u6362\u5143\u7d20\uff0c\u5e38\u89c1\u7684\u66ff\u6362\u5143\u7d20\u5305\u62ec<code>&lt;img&gt;<\/code>\uff0c<code>&lt;input&gt;<\/code>\uff0c<code>&lt;img&gt;<\/code>\uff0c<code>&lt;button&gt;<\/code>\uff0c<code>&lt;iframe&gt;<\/code>\uff0c<code>&lt;video&gt;<\/code>\uff0c<code>&lt;object&gt;<\/code>\u7b49\u3002<\/p>\n<p>\u9664\u4e86\u5185\u5bb9\u53ef\u66ff\u6362\u4ee5\u53ca\u4e00\u4e9bCSS\u884c\u4e3a\u5dee\u5f02\u5916\uff0c\u5728ARIA\u65e0\u969c\u788d\u8bbf\u95ee\u8fd9\u4e00\u9886\u57df\u4e5f\u662f\u6709\u7740\u5de8\u5927\u7684\u5dee\u5f02\u7684\u3002<\/p>\n<h4>1. \u975e\u66ff\u6362\u5143\u7d20<\/h4>\n<p><strong>\u2460 touch\u9875\u9762\u4efb\u4f55\u533a\u57df\u4e00\u5b9a\u4f1a\u6709\u4fe1\u606f\u8bfb\u53d6\uff01<\/strong><\/p>\n<p>\u975eVoiceOver\u72b6\u6001\uff0c\u4f60\u70b9\u51fb\u9875\u9762\u7a7a\u767d\uff0c\u662f\u4e0d\u4f1a\u6709\u4ec0\u4e48\u53cd\u5e94\u7684\uff0c\u4f46\u662f\u5f00\u542fVoiceOver\u540e\u5219\u5b8c\u5168\u4e0d\u540c\uff0ctouch\u9875\u9762\u4efb\u4f55\u533a\u57df\u4e00\u5b9a\u4f1a\u6709\u4fe1\u606f\u8bfb\u53d6\uff0c\u5305\u62ec\u7a7a\u767d\u533a\u57df\uff0c\u800c\u8f7b\u89e6\u7a7a\u767d\u533a\u57df\u7684\u8bfb\u53d6\u9075\u5faa\u4e0b\u97622\u4e2a\u89c4\u5219\uff1a<\/p>\n<ol>\n<li>\u5c31\u8fd1\u539f\u5219\uff1b<\/li>\n<li>\u7a7f\u900f\u89c4\u5219\uff1b<\/li>\n<\/ol>\n<p>\u6240\u8c13\u201c\u5c31\u8fd1\u539f\u5219\u201d\uff0c\u6bd4\u65b9\u8bf4\u70b9\u51fb\u4e0b\u56fe\u6240\u793a\u7684\u4f4d\u7f6e\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201701\/tap-blank.png\" alt=\"\u7a7a\u767d\u533a\u57df\u70b9\u51fb\u793a\u610f\u56fe\" width=\"438\" height=\"152\"><\/p>\n<p>\u7ed3\u679c\u9009\u4e2d\u548c\u8bfb\u53d6\u7684\u5185\u5bb9\u662f\u201c\u514d\u8d39 \u94fe\u63a5 \u5bfc\u822a \u6807\u5fd7\u6027\u5185\u5bb9\u201d\uff0c\u54ea\u4e2a\u8fd1\u8bfb\u54ea\u4e2a\u3002<\/p>\n<p>\u6240\u8c13\u201c\u7a7f\u900f\u89c4\u5219\u201d\uff0c\u6bd4\u65b9\u8bf4\u70b9\u51fb\u4e0b\u56fe\u6240\u793a\u7684\u534a\u900f\u660e\u9ed1\u8272\u8499\u5c42\u4f4d\u7f6e\uff0c\u8bf7\u95ee\u8bfb\u51fa\u6765\u7684\u4fe1\u606f\u662f\uff1f<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201701\/overlay-read.png\" alt=\"\u8499\u5c42\u70b9\u51fb\u793a\u610f\u56fe\" width=\"401\" height=\"298\"><\/p>\n<p>\u7ed3\u679c\u4e0d\u662f\u201c\u4fe1\u4ef0\u795e\u56fd\u201d\uff0c\u4e5f\u4e0d\u662f\u201c\u8bfb\u81f3&#8230;\u201d\uff0c\u8bfb\u53d6\u7684\u4fe1\u606f\u800c\u662f\u8499\u5c42\u4e0b\u9762\u7684\u56fe\u7247\u5217\u8868\u4fe1\u606f\uff01\u6ca1\u9519\uff0c\u76f4\u63a5\u7a7f\u900f\u4e86\u3002\u8fd9\u4e2a\u548c\u6b63\u5e38\u6d4f\u89c8\u65b9\u5f0f\u4e0b\u7684\u70b9\u51fb\u4e16\u754c\u89c2\u662f\u4e0d\u4e00\u6837\u7684\u3002\u4f46\u662f\uff0c\u663e\u7136\uff0c\u6b64\u5904\u7a7f\u900f\u4e0d\u662f\u6211\u4eec\u60f3\u8981\u7684\uff0c\u600e\u4e48\u907f\u514d\u5462\uff1f\u8fd9\u4e2a\u540e\u9762\u4f1a\u4ecb\u7ecd\u3002<\/p>\n<p><strong>\u2461 \u5fc5\u987b\u6709\u6587\u5b57\u5185\u5bb9\u624d\u4f1a\u8bfb\u53d6<\/strong><\/p>\n<ol>\n<li>\n<p>\u5982\u679c\u5143\u7d20\u4e0d\u542b\u6587\u5b57\u5185\u5bb9\uff0c\u662f\u4e0d\u4f1a\u8bfb\u53d6\u7684\uff0c\u4f8b\u5982\uff0c\u4e0b\u56fe\u56fe\u6807\u8f7b\u89e6\u662f\u88ab\u76f4\u63a5\u5ffd\u7565\u7684\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201701\/2017-01-20_184647.png\" alt=\"\u56fe\u6807\u622a\u56fe\u793a\u610f\" width=\"160\" height=\"170\"><\/p>\n<p>\u76f8\u5173HTML\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<pre>&lt;a href&gt;\r\n  <span style=\"color:#cd0000;\">&lt;i class=\"icon-free\"&gt;&lt;\/i&gt;<\/span>    <span style=\"color:green;\">&lt;!-- VoiceOver\u5ffd\u7565 --&gt;<\/span>\r\n  &lt;h4&gt;\u514d\u8d39&lt;\/h4&gt;\r\n&lt;\/a&gt;\r\n<\/pre>\n<\/li>\n<li>\n<p>\u8fd8\u6ca1\u5b8c\uff0c\u5982\u679c\u6211\u4eec\u589e\u52a0<code>title<\/code>\u5c5e\u6027\u63cf\u8ff0\u5185\u5bb9\uff0c\u90a3\u4f1a\u4e0d\u4f1a\u8bfb\u53d6\u5462\uff1f<\/p>\n<pre>&lt;i class=\"icon-free\" title=\"\u56fe\u6807\"&gt;&lt;\/i&gt;    <span style=\"color:green;\">&lt;!-- VoiceOver\u8bfb\u4e0d\u8bfb\u5462\uff1f --&gt;<\/span><\/pre>\n<p>\u7b54\u6848\u662f\uff1a<strong>\u4f9d\u65e7\u5ffd\u7565\uff01<\/strong><\/p>\n<\/li>\n<li>\n<p>\u4f46\u662f\uff0c\u6ce8\u610f\uff0c\u4f46\u662f\uff0c\u6709\u4e00\u4e2a\u4f8b\u5916\uff0c\u90a3\u5c31\u662f<code>&lt;a&gt;<\/code>\u5143\u7d20\uff0c\u5982\u679c\u8fd9\u91cc\u7684<code>&lt;i&gt;<\/code>\u6807\u7b7e\u6362\u6210<code>&lt;a&gt;<\/code>\uff0c\u5219<code>title<\/code>\u5c5e\u6027\u5c31\u53ef\u4ee5\u88abVoiceOver\u5ba0\u5e78\u3002<\/p>\n<pre>&lt;a href class=\"icon\" title=\"\u56fe\u6807\"&gt;&lt;\/a&gt;       <span style=\"color:green;\">&lt;!-- \u8bfb\uff1a\u56fe\u6807 \u94fe\u63a5 --&gt;<\/span><\/pre>\n<\/li>\n<li>\n<p>\u8fd8\u662f<code>&lt;i&gt;<\/code>\u6807\u7b7e\uff0c\u4f46\u662f\uff0c\u6211\u4eec\u4e0d\u662f\u4f7f\u7528<code>title<\/code>\u5c5e\u6027\uff0c\u8fd8\u662fARIA\u539f\u751f\u7684\u89c4\u8303\u7684<code>aria-label<\/code>\u4fe1\u606f\u63cf\u8ff0\u5c5e\u6027\uff0c\u90a3\u4f1a\u4e0d\u4f1a\u8bfb\u53d6\u5462\uff1f<\/p>\n<pre>&lt;i class=\"icon-free\" aria-label=\"\u56fe\u6807\"&gt;&lt;\/i&gt;<\/pre>\n<p>\u7b54\u6848\u662f\uff1a<strong>\u5ffd\u7565\uff0c\u4e0d\u4f1a\u8bfb\u53d6\uff01<\/strong><\/p>\n<\/li>\n<li>\n<p>\u8fd8\u6ca1\u5b8c\uff0c\u5982\u679c\u6211\u4eec\u91cc\u9762\u5199\u5165\u4e86\u6587\u5b57\uff0c\u4f46\u662f\u662f<code>display:none<\/code>\u9690\u85cf\u7684\uff0c\u90a3\u4f1a\u4e0d\u4f1a\u8bfb\u53d6\u5462\uff1f<\/p>\n<pre>&lt;i class=\"icon-free\"&gt;   \r\n  &lt;span hidden&gt;\u56fe\u6807&lt;\/span&gt;\r\n&lt;\/i&gt;\r\n<\/pre>\n<p>\u7b54\u6848\u662f\uff1a<strong>\u5ffd\u7565\uff0c\u4e0d\u4f1a\u8bfb\u53d6\uff01<\/strong><\/p>\n<\/li>\n<li>\n<p>\u8fd8\u6ca1\u5b8c\uff0c\u5982\u679c\u6211\u4eec\u91cc\u9762\u5199\u5165\u4e86\u6587\u5b57\uff0c\u4f46\u662f\u4f7f\u7528\u7684\u662f<code>visibility:hidden<\/code>\u9690\u85cf\uff0c\u90a3\u4f1a\u4e0d\u4f1a\u8bfb\u53d6\u5462\uff1f<\/p>\n<pre>&lt;i class=\"icon-free\"&gt;\r\n  &lt;span style=\"visibility:hidden;\"&gt;\u56fe\u6807&lt;\/span&gt;\r\n&lt;\/i&gt;\r\n<\/pre>\n<p>\u7b54\u6848\u662f\uff1a<strong>\u5ffd\u7565\uff0c\u4e0d\u4f1a\u8bfb\u53d6\uff01<\/strong><\/p>\n<\/li>\n<li>\n<p>\u8fd8\u6ca1\u5b8c\uff0c\u5047\u8bbe\u6211\u4eec\u4f7f\u7528<code>text-indent<\/code>\u7f29\u8fdb\u8ba9\u6587\u5b57\u9690\u85cf\u5230\u5c4f\u5e55\u4e4b\u5916\uff0c\u90a3\u603b\u8be5\u8981\u8bfb\u53d6\u4e86\u5427\uff1f<\/p>\n<pre>&lt;i class=\"icon\" style=\"text-indent:-999px;\"&gt;\u56fe\u6807&lt;\/i&gt;\r\n<\/pre>\n<p>\u7b54\u6848\u662f\uff1a<strong>\u5ffd\u7565\uff0c\u4e0d\u4f1a\u8bfb\u53d6\uff01<\/strong><\/p>\n<\/li>\n<li>\n<p>\u8fd8\u6ca1\u5b8c\uff0c\u5047\u5982\u6211\u4eec\u7684<code>text-indent<\/code>\u7f29\u8fdb\u4e0d\u8981\u90a3\u4e48\u731b\uff0c\u4ec5\u4ec5\u662f\u56fe\u6807\u5bb9\u5668\u5916\uff0c\u4f46\u662f\u5728\u5c4f\u5e55\u5185\uff0c\u90a3\u4f1a\u4e0d\u4f1a\u8bfb\u53d6\u5462\uff1f<\/p>\n<pre>&lt;i class=\"icon\" style=\"text-indent:-10%;\"&gt;\u56fe\u6807&lt;\/i&gt;<\/pre>\n<p>\u7b54\u6848\u662f\uff1a<strong style=\"color:green;\">\u4f1a\u8bfb\u53d6\uff01<\/strong>\u4f46\u662f\uff0c\u9009\u4e2d\u65f6\u5019\u7684\u5916\u6846\u660e\u663e\u4e0d\u5728\u56fe\u6807\u6240\u5728\u7684\u4f4d\u7f6e\uff0c\u800c\u662f\u6587\u5b57\u6240\u5728\u7684\u4f4d\u7f6e\u3002<\/p>\n<\/li>\n<li>\n<p>\u8fd8\u6ca1\u5b8c\uff0c\u5047\u8bbe\u6211\u4eec\u4f7f\u7528CSS <code>clip<\/code>\u5c5e\u6027\u9690\u85cf\uff0c\u90a3\u4f1a\u4e0d\u4f1a\u8bfb\u53d6\u5462\uff1f<\/p>\n<pre>&lt;i class=\"icon\"&gt;\r\n    &lt;span style=\"position:absolute;clip:rect(0,0,0,0);\"&gt;\r\n        \u56fe\u6807\r\n    &lt;\/span&gt;\r\n&lt;\/i&gt;\r\n<\/pre>\n<p>\u7b54\u6848\u662f\uff1a<strong style=\"color:green;\">\u4f1a\u8bfb\u53d6\uff01<\/strong><\/p>\n<\/li>\n<li>\n<p>\u8fd8\u6ca1\u5b8c\uff0c\u5047\u8bbe\u6211\u4eec\u4f7f\u7528\u7edd\u5bf9\u5b9a\u4f4d\u5c4f\u5e55\u5916\u9690\u85cf\uff0c\u90a3\u4f1a\u4e0d\u4f1a\u8bfb\u53d6\u5462\uff1f<\/p>\n<pre>&lt;i class=\"icon\"&gt;\r\n    &lt;span style=\"position:absolute;left:-999px;\"&gt;\r\n        \u56fe\u6807\r\n    &lt;\/span&gt;\r\n&lt;\/i&gt;<\/pre>\n<p>\u7b54\u6848\u662f\uff1a<strong>\u5ffd\u7565\uff0c\u4e0d\u4f1a\u8bfb\u53d6\uff01<\/strong><\/p>\n<\/li>\n<li>\n<p>\u8fd8\u6ca1\u5b8c\uff0c\u5982\u679c\u662f\u76f8\u5bf9\u5b9a\u4f4d\u5c4f\u5e55\u5916\u9690\u85cf\u5462\uff1f<\/p>\n<pre>&lt;i class=\"icon\"&gt;\r\n    &lt;span style=\"position:relative;left:-999px;\"&gt;\r\n        \u56fe\u6807\r\n    &lt;\/span&gt;\r\n&lt;\/i&gt;<\/pre>\n<p>\u7b54\u6848\u662f\uff1a<strong>\u5ffd\u7565\uff0c\u4e0d\u4f1a\u8bfb\u53d6\uff01<\/strong><\/p>\n<\/li>\n<li>\n<p>\u8fd8\u6ca1\u5b8c\uff0c\u6211\u8fd8\u6709\u6700\u540e\u4e00\u53e3\u6c14\uff0c\u7ec8\u6781\u7edd\u62db\uff0c\u5982\u679c\u6587\u5b57\u662f\u900f\u660e\u7684\uff0c\u90a3\u4f1a\u4e0d\u4f1a\u8bfb\u53d6\u5462\uff1f<\/p>\n<pre>&lt;i class=\"icon\" style=\"color:transparent;\"&gt;\u56fe\u6807&lt;\/i&gt;<\/pre>\n<p>\u606d\u559c\u4f60\uff0c<strong style=\"color:green;\">\u4f1a\u8bfb\u53d6\uff01<\/strong><\/p>\n<\/li>\n<\/ol>\n<p><strong>\u2462 \u6587\u5b57\u57fa\u4e8e\u5185\u8054\u76d2\u5b50\u7247\u6bb5\u8bfb\u53d6<\/strong><\/p>\n<p>\u5982\u4e0b\u4e00\u6bb5\u7b80\u5355\u5e38\u89c1\u7684HTML\u4ee3\u7801\uff1a<\/p>\n<pre>&lt;p&gt;\u603b\u5171\u6d88\u8d39&lt;output&gt;500&lt;\/output&gt;\u5143&lt;\/p&gt;<\/pre>\n<p>\u8bf7\u95ee\uff0c<code>touchstart<\/code>\u6216<code>touchmove<\/code>\u8be5<code>&lt;p&gt;<\/code>\u5143\u7d20\u7684\u65f6\u5019\u8bfb\u53d6\u7684\u4fe1\u606f\u662f\uff1f<\/p>\n<p>\u7ed3\u679c\uff1a\u8981\u4e48\u201c\u603b\u5171\u6d88\u8d39\u201d\uff0c\u8981\u4e48\u201c\u4e94\u767e\u201d\uff0c\u8981\u4e48\u201c\u5143\u201d\u3002\u662f\u4e0d\u4f1a\u8fde\u7eed\u8bfb\u53d6\u201c\u603b\u5171\u6d88\u8d39500\u5143\u201d\u7684\u3002\u5b8c\u5168\u662f\u57fa\u4e8e\u5185\u8054\u76d2\u5b50\u6765\u8bfb\u53d6\u7684\uff0c\u4f8b\u5982\u8fd9\u91cc\u201c\u603b\u5171\u6d88\u8d39\u201d\u548c\u201c\u5143\u201d\u662f\u4e24\u4e2a\u201c\u533f\u540d\u5185\u8054\u76d2\u5b50\u201d\uff0c\u5916\u9762\u6709<code>output<\/code>\u6807\u7b7e\u7684<code>\"500\"<\/code>\u662f\u5185\u8054\u76d2\u5b50\u3002<\/p>\n<p>\u4f46\u662f\uff0c\u5982\u679c\u662f<code>&lt;h1&gt;<\/code>~<code>&lt;h6&gt;<\/code>\u6807\u9898\u5143\u7d20\uff0c\u5219\u4f8b\u5916\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>&lt;h6&gt;\u603b\u5171\u6d88\u8d39&lt;output&gt;500&lt;\/output&gt;\u5143&lt;\/h6&gt;<\/pre>\n<p>\u8bfb\u201c\u603b\u5171\u6d88\u8d39500\u5143 \u6807\u9898\u7ea7\u522b6\u201d\u3002<\/p>\n<h4>2. \u5bf9\u4e8e\u66ff\u6362\u5143\u7d20<\/h4>\n<p><strong>\u2460 \u66ff\u6362\u5143\u7d20\u6c38\u8fdc\u4e0d\u4f1a\u7a7f\u900f<\/strong><\/p>\n<p>\u6bd4\u65b9\u8bf4\u4e00\u5f00\u59cb\u7684\u8fd9\u4e2a\u56fe\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201701\/overlay-read.png\" alt=\"\u8499\u5c42\u70b9\u51fb\u793a\u610f\u56fe\" width=\"401\" height=\"298\"><\/p>\n<p>\u8981\u907f\u514d\u7a7f\u900f\uff0c\u6211\u4eec\u4f7f\u7528<code>role<\/code>\u5c5e\u6027\u5c06\u6807\u7b7e\u89d2\u8272\u53d8\u6210\u66ff\u6362\u5143\u7d20\uff0c\u4f8b\u5982\u8bbe\u7f6e<code>role=\"button\"<\/code>\uff0c\u5982\u4e0b\u622a\u56fe\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201701\/2017-01-20_193538.png\" alt=\"role button\u793a\u610f\" width=\"560\" height=\"147\"><\/p>\n<p><strong>\u2461 \u66ff\u6362\u5143\u7d20title\u5c5e\u6027\u8bfb\u53d6<\/strong><\/p>\n<p>\u8fd8\u662f\u4e0a\u9762\u90a3\u4e2a\u514d\u8d39\u56fe\u5f62\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201701\/2017-01-20_184647.png\" alt=\"\u56fe\u6807\u622a\u56fe\u793a\u610f\" width=\"160\" height=\"170\"><\/p>\n<ol>\n<li>\n<p>\u5982\u679cHTML\u662f\u4e0b\u9762\u8fd9\u6837\uff1a<\/p>\n<pre>&lt;i class=\"icon\" role=\"img\" title=\"\u56fe\u6807\"&gt;&lt;\/i&gt;<\/pre>\n<p>\u5219<code>title<\/code>\u5c5e\u6027\u503c\u662f\u4f1a\u8bfb\u53d6\u7684\uff0c\u8fd9\u91cc\u4f1a\u8bfb\u201c\u56fe\u6807 \u56fe\u50cf\u201d\u3002<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c\u89d2\u8272\u662f\u66ff\u6362\u5143\u7d20\uff0c\u5219<code>aria-label<\/code>\u63cf\u8ff0\u4fe1\u606f\u4e5f\u4f1a\u8bfb\u53d6\uff1a<\/p>\n<pre>&lt;i class=\"icon\" role=\"img\" aria-label=\"\u56fe\u6807\"&gt;&lt;\/i&gt;<\/pre>\n<\/li>\n<li>\n<p><code>role=\"img\"<\/code>\u5143\u7d20\u91cc\u9762\u6587\u672c\u4e0d\u8bfb\u53d6\uff0c\u8fd9\u4e2a\u5f88\u597d\u7406\u89e3\uff0c\u539f\u751f\u7684<code>&lt;img&gt;<\/code>\u56fe\u7247\u6807\u7b7e\u91cc\u9762\u662f\u4e0d\u80fd\u54df\u6587\u5b57\u5185\u5bb9\u7684\u3002<\/p>\n<pre>&lt;i class=\"icon\" role=\"img\"&gt;\u56fe\u6807&lt;\/i&gt;<\/pre>\n<p>\u6b64\u65f6\u53ea\u4f1a\u8bfb\u201c\u56fe\u50cf\u201d\uff0c\u91cc\u9762\u7684\u6587\u5b57\u201c\u56fe\u6807\u201d\u88ab\u5ffd\u7565\u4e86\u3002<\/p>\n<\/li>\n<li>\n<p><code>role=\"button\"<\/code>\u975e<code>display<\/code>\u9690\u85cf\u6587\u672c\u5747\u8bfb\u53d6\uff0c\u4e5f\u5c31\u662f<code>color<\/code>\u900f\u660e\u9690\u85cf\uff0c<code>font-size:0<\/code>\u9690\u85cf\uff0c<code>visibility:hidden<\/code>\u9690\u85cf\uff0c<code>text-indent<\/code>\u7f29\u8fdb\u9690\u85cf\uff0c<code>absolute<\/code>\u5c4f\u5e55\u5916\u9690\u85cf\u3002\u3002\u3002\u90fd\u662f\u8bfb\u53d6\u7684\u3002<\/p>\n<p>\u4f46\u662f\uff0c\u5982\u679c\u662f<code>display:none<\/code>\uff0c\u5219\u5ffd\u7565\uff1a<\/p>\n<pre>&lt;i class=\"icon\" role=\"button\"&gt;\r\n  &lt;span hidden&gt;\u56fe\u6807&lt;\/span&gt;    <span style=\"color:green;\">&lt;!-- \u201c\u56fe\u6807\u201d\u4e0d\u8bfb\u53d6 --&gt;<\/span>\r\n&lt;\/i&gt;\r\n<\/pre>\n<\/li>\n<li>\n<p>\u8bbe\u7f6e<code>aria-hidden=\"true\"<\/code>\u5143\u7d20\u4e0d\u53ef\u8bfb\u4e0d\u53ef\u70b9\u3002<\/p>\n<pre>&lt;i class=\"icon\" role=\"button\"&gt;\r\n  &lt;span aria-hidden=\"true\"&gt;\u56fe\u6807&lt;\/span&gt;    <span style=\"color:green;\">&lt;!-- \u201c\u56fe\u6807\u201d\u4e0d\u8bfb\u53d6 --&gt;<\/span>\r\n&lt;\/i&gt;\r\n<\/pre>\n<p><code>aria-hidden=\"true\"<\/code>\u662fARIA\u65e0\u969c\u788d\u5904\u7406\u552e\u540e\u975e\u5e38\u5e38\u7528\u7684\u4e00\u4e2a\u5c5e\u6027\uff0c\u6240\u6709\u7684\u88c5\u9970\u6027\u5143\u7d20\u6216\u8005\u70b9\u51fb\u533a\u57df\u592a\u5c0f\u7684\u5143\u7d20\u90fd\u5e94\u8be5\u8bbe\u7f6e<code>aria-hidden=\"true\"<\/code>\uff0c\u907f\u514d\u65e0\u8c13\u4fe1\u606f\u5bf9\u7528\u6237\u7684\u5e72\u6270\u3002<\/p>\n<\/li>\n<li>\n<p>\u5f53\u5185\u5bb9\uff0c\u6807\u9898\u7b49\u4fe1\u606f\u540c\u65f6\u5b58\u5728\u65f6\u5019\u7684\u8bfb\u53d6\u987a\u5e8f\u662f\uff1a<strong>\u4f18\u5148\u5185\u5bb9\uff0c\u7136\u540e\u7c7b\u578b\uff0c\u7136\u540e\u6807\u9898<\/strong>\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>&lt;i class=\"icon\" role=\"button\" title=\"\u793a\u610f\"&gt;\u56fe\u6807&lt;\/i&gt;<\/pre>\n<p>\u8bfb\uff1a\u201c\u56fe\u6807\uff0c\u6309\u94ae\u201d\uff0c\u660e\u663e\u505c\u987f\u540e\uff0c\u201c\u793a\u610f\u201d\u3002\u6ce8\u610f\uff0c\u8bfb<code>title<\/code>\u5c5e\u6027\u4e4b\u524d\u6709\u4e2a\u975e\u5e38\u975e\u5e38\u660e\u663e\u7684\u505c\u987f\uff0c\u505c\u987f\u65f6\u95f4\u4e4b\u957f\uff0c\u611f\u89c9\u5c31\u50cf\u6717\u8bfb\u4eba\u65ad\u7247\u4e86\u4e00\u6837\u3002<\/p>\n<\/li>\n<li>\n<p><code>aria-label<\/code>\u4f5c\u7528\u548c\u6587\u5b57\u5185\u5bb9\u7c7b\u4f3c\uff0c\u4f46\u662f\u4f18\u5148\u7ea7\u66f4\u9ad8\u3002\u4e5f\u5c31\u662f\u540c\u65f6\u5b58\u5728\u7684\u65f6\u5019\uff0c\u6587\u5b57\u5185\u5bb9\u8bfb\u53d6\u4f1a\u88ab\u5ffd\u7565\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>&lt;i role=\"button\" aria-label=\"\u56fe\u68071\" title=\"\u793a\u610f\"&gt;\u56fe\u68072&lt;\/i&gt;\r\n<\/pre>\n<p>\u8bfb\uff1a\u201c\u56fe\u68071\uff0c\u6309\u94ae\u201d\uff0c\u660e\u663e\u505c\u987f\u540e\uff0c\u201c\u793a\u610f\u201d\u3002\u201c\u56fe\u68072\u201d\u4e0d\u4f1a\u8bfb\u53d6\uff0c\u88ab\u5ffd\u7565\uff01<\/p>\n<p><strong>\u8865\u5145\u4e8e2017-01-23<\/strong><br \/>\n\u5982\u679c\u5e0c\u671b\u8bfb\u5185\u90e8\u4fe1\u606f\uff0c\u540c\u65f6\u53c8\u81ea\u5b9a\u4e49\u4e00\u4e9b\u4fe1\u606f\uff0c\u53ef\u4ee5\u4f7f\u7528<code>aria-describedby<\/code>\uff0c<code>aria-describedby<\/code>\u7684\u884c\u4e3a\u8868\u73b0\u548c\u8bed\u4e49\u6709\u4e9b\u7c7b\u4f3c\u4e8e<code>title<\/code>\u5c5e\u6027\uff0c<code>aria-describedby<\/code>\u7684\u5c5e\u6027\u503c\u53ea\u80fd\u662f\u5143\u7d20<code>id<\/code>\uff0c\u8fd9\u975e\u5e38\u9002\u5408\u4fdd\u8bc1\u539f\u59cb\u6807\u7b7e\u8bed\u4e49\u540c\u65f6\u544a\u77e5\u8f85\u52a9\u4fe1\u606f\u7684\u573a\u666f\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>&lt;h3 aria-describedby=\"ariaDesc1\"&gt;\u70ed\u95e8\u5c0f\u8bf4&lt;\/h3&gt;\r\n&lt;span id=\"ariaDesc1\" aria-hidden=\"true\"&gt;\u7f16\u8f91\u63a8\u8350&lt;\/span&gt;<\/pre>\n<\/li>\n<li>\n<p>\u5927\u6bb5\u63cf\u8ff0\u53ef\u4ee5\u4f7f\u7528<code>aria-labelledby<\/code>\u6216<code>aria-describedby<\/code>\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>&lt;i role=\"button\" aria-labelledby=\"id\"&gt;\u56fe\u68072&lt;\/i&gt;\r\n&lt;p hidden id=\"id\"&gt;\u8fd9\u662f\u4e00\u4e2a...\u56fe\u6807&lt;\/p&gt;<\/pre>\n<p>\u8bfb\uff1a\u201c\u8fd9\u662f\u4e00\u4e2a\u2026\u56fe\u6807\uff0c\u6309\u94ae\u201d\u3002<\/p>\n<p>\u53ef\u4ee5\u770b\u5230\uff0c\u76ee\u524d\u63cf\u8ff0\u5143\u7d20\u5373\u4f7f<code>display:none<\/code>\u4e5f\u662f\u53ef\u4ee5\u8bfb\u53d6\u7684\u3002<code>aria-labelledby<\/code>\u6216<code>aria-describedby<\/code>\u7684\u5c5e\u6027\u503c\u5bf9\u5e94\u63cf\u8ff0\u4fe1\u606f\u5143\u7d20\u7684<code>id<\/code>\u5c5e\u6027\u503c\uff0c\u53ef\u4ee5\u662f\u591a\u4e2a\uff0c\u4f7f\u7528\u7a7a\u683c\u5206\u9694\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>&lt;i role=\"button\" aria-labelledby=\"id1 id2 id3\"&gt;\u56fe\u68072&lt;\/i&gt;<\/pre>\n<\/li>\n<li>\n<p><code>&lt;nav&gt;<\/code>\u4f1a\u8bfb\u201c\u5bfc\u822a\uff0c\u6807\u5fd7\u6027\u5185\u5bb9\u201d\uff0c<code>&lt;header&gt;<\/code>\u8bfb\u201c\u6a2a\u5e45\uff0c\u6807\u5fd7\u6027\u5185\u5bb9\u201d\uff0c<code>&lt;footer&gt;<\/code>\u8bfb\u201c\u9875\u811a\uff0c\u6807\u5fd7\u6027\u5185\u5bb9\u201d\u3002<\/p>\n<p>\u7136\u540e\uff0c\u82e5\u89e6\u53d1\u7684\u662f\u5b50\u5143\u7d20\uff0c\u4ec5\u7b2c\u4e00\u6b21\u89e6\u53d1\u8bfb\u53d6\u4e0a\u9762\u7684\u4fe1\u606f\u3002\u4f8b\u5982\uff0c\u5bfc\u822a\u4e2d\u6709\u4e24\u4e2a\u94fe\u63a5\uff0c\u5219\u8f7b\u89e6\u7b2c\u4e00\u4e2a\u7684\u65f6\u5019\uff0c\u8bfb\u201cxx, \u94fe\u63a5\uff0c\u5bfc\u822a\uff0c\u6807\u5fd7\u6027\u5185\u5bb9\u201d\uff0c\u7d27\u63a5\u7740\u8f7b\u89e6\u7b2c\u4e8c\u4e2a\u94fe\u63a5\u7684\u65f6\u5019\uff0c\u4ec5\u4ec5\u4f1a\u8bfb\u201c\u201cxx, \u94fe\u63a5\u201d\u3002<\/p>\n<p>\u51fa\u4e4e\u610f\u6599\u7684\u662f\uff0c<code>&lt;ul&gt;<\/code>, <code>&lt;ol&gt;<\/code>\u4e0d\u4f1a\u8bfb\u5217\u8868\uff0c\u9700\u8981\u589e\u52a0<code>role=\"listbox\"<\/code>\uff0c\u8fd9\u6837\uff0c\u89e6\u53d1<code>&lt;li;&gt;<\/code>\u5143\u7d20\u7684\u65f6\u5019\u4f1a\u8bfb\u201c\u5217\u8868\uff0c\u7b2c\u4e00\u4e2a\u201d\u3002<\/p>\n<p>\u6240\u6709<code>form<\/code>\u539f\u751f\u63a7\u4ef6\u90fd\u80fd\u51c6\u786e\u8bfb\u53d6\uff0c\u5305\u62ec\u72b6\u6001\u3002\u56e0\u6b64\uff0c\u4e00\u5b9a\u8981\u517b\u6210\u57fa\u4e8e\u5143\u7d20\u8868\u5355\u63a7\u4ef6\u5b9e\u73b0\u4ea4\u4e92\u6548\u679c\u7684\u4e60\u60ef\uff0c\u63a7\u4ef6\u4e11\u6ca1\u5173\u7cfb\uff0c\u900f\u660e\u5ea6<code>opacity:0<\/code>\u8986\u76d6\u5904\u7406\u4e4b\uff0c\u4f8b\u5982\uff0c\u5355\u9009\u9879\uff0c\u590d\u9009\u6846\u6548\u679c\u7b49\u3002<\/p>\n<\/li>\n<li>\n<p>\u540e\u9762\u8fd9\u4e9b\u89d2\u8272\u8bbe\u7f6e\u53ef\u8ba9\u65ad\u7247\u6587\u672c\u8fde\u8bfb\uff1a<code>role=\"button\"<\/code>, <code>role=\"tab\"<\/code>, <code>role=\"heading\"<\/code>, <code>role=\"combobox\"<\/code>\u7b49\u3002<\/p>\n<pre>&lt;p role=\"button\"&gt;\u603b\u5171\u6d88\u8d39&lt;output&gt;500&lt;\/output&gt;\u5143&lt;\/p&gt;<\/pre>\n<p>\u8bfb\uff1a\u201c\u5171\u6d88\u8d39500\u5143\uff0c\u6309\u94ae\u201d\u3002<\/p>\n<p>\u867d\u7136\u5f88\u597d\u5730\u89e3\u51b3\u4e86\u591a\u4e2a\u5185\u8054\u5143\u7d20\u8bfb\u53d6\u201c\u65ad\u7247\u201d\u7684\u95ee\u9898\uff0c\u4f46\u662f\uff0c\u4e0d\u5408\u8bed\u4e49\uff0c\u660e\u660e\u4e0d\u662f\u6309\u94ae\uff0c\u4f60\u8bf4\u662f\u6309\u94ae\uff0c\u95ee\u9898\u5f88\u5927\u3002<\/p>\n<p>\u540e\u6765\uff0c\u7ecf\u8fc7\u6211\u7684\u5404\u79cd\u5c1d\u8bd5\uff0c\u53d1\u73b0\u4e86\u4e00\u4e2a<strong>\u65e0\u8bed\u4e49\u6587\u672c\u8fde\u8bfb\u6280\u5de7<\/strong>\uff0c\u5c31\u662f\u4f7f\u7528\uff1a<code>role=\"option\"<\/code>\u3002<\/p>\n<p><code>option<\/code>\u503c\u6e90\u81eaHTML\u4e0b\u62c9\u5217\u8868\u7684<code>&lt;option&gt;<\/code>\u6807\u7b7e\u3002<code>option<\/code>\u53ef\u4ee5\u8ba9\u91cc\u9762\u6587\u5b57\u8fde\u8bfb\u7684\u539f\u7406\u662f\uff0c\u539f\u751f\u7684<code>&lt;option&gt;<\/code>\u6807\u7b7e\u4e2d\u53ea\u80fd\u662f\u7eaf\u6587\u672c\uff0c\u4f1a\u5ffd\u7565\u4e00\u5207\u7684HTML\u6807\u7b7e\uff0c\u4e8e\u662f\uff0c\u8bbe\u7f6e\u4e86<code>role=\"option\"<\/code>\uff0c\u5c31\u4f1a\u5f53<code>&lt;output&gt;<\/code>\u6807\u7b7e\u4e0d\u5b58\u5728\uff0c\u4ece\u800c\u8fde\u8bfb\uff0c\u5e76\u4e14\u9009\u4e2d\u7684\u9ad8\u4eae\u6846\u8303\u56f4\u4e5f\u66f4\u52a0\u5408\u7406\u3002<\/p>\n<p><strong>\u8865\u5145\u4e8e2017-01-23<\/strong><br \/>\n\u4f7f\u7528<code>role=\"option\"<\/code>\u8fde\u8bfb\u7684\u65f6\u5019\u4f1a\u53ef\u80fd\u4f1a\u5b58\u5728\u5185\u5bb9\u65ad\u53e5\u4e0d\u6e05\u7684\u60c5\u51b5\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>&lt;li class=\"fans-li\" role=\"option\"&gt;\r\n    &lt;div class=\"rel\"&gt;&lt;aria&gt;\u7c89\u4e1d\u7b2c1\u540d\uff1a\u6211\u662f\u5927\u5e05\u54e5&lt;\/aria&gt;&lt;\/div&gt;\r\n     &lt;div class=\"rel\"&gt;\r\n      &lt;aria&gt;\u7c89\u4e1d\u7b49\u7ea7\uff1a&lt;\/aria&gt;LV4\r\n    &lt;\/div&gt;\r\n&lt;\/li&gt;\r\n<\/pre>\n<p>\u6b64\u65f6\u6717\u8bfb\u6548\u679c\u4e3a\u201c\u7c89\u4e1d\u7b2c1\u540d \u6211\u662f\u5927\u5e05\u54e5\u7c89\u4e1d\u7b49\u7ea7 L V 4\u201d\uff08\u7a7a\u683c\u8868\u793a\u505c\u987f\uff09\u3002\u5b9e\u9645\u4e0a\uff0c\u201c\u6211\u662f\u5927\u5e05\u54e5\u7c89\u4e1d\u7b49\u7ea7\u201d\u4e2d\u95f4\u5e94\u8be5\u6709\u660e\u663e\u7684\u65ad\u53e5\u3002\u600e\u4e48\u529e\u5462\uff1f\u53ef\u4ee5\u4f7f\u7528\u82f1\u6587\u53e5\u53f7\uff0c\u4e5f\u5c31\u662f\u70b9\u7ed3\u675f\u7b26\uff0c\u53ef\u4ee5\u4ea7\u751f\u660e\u663e\u65ad\u53e5\uff0c\u6bd4\u5168\u89d2\u7684\u5192\u53f7\u201c\uff1a\u201d\u4f3c\u4e4e\u8fd8\u8981\u65ad\u53e5\u660e\u663e\u3002\u4fee\u6539\u5982\u4e0b\uff08\u201c\u6211\u662f\u5927\u5e05\u54e5\u540e\u9762\u52a0\u4e86\u4e2a\u70b9<code>.<\/code>\uff0c\u9690\u85cf\u201d\uff09\uff1a<\/p>\n<pre>&lt;li class=\"fans-li\" role=\"option\"&gt;\r\n    &lt;div class=\"rel\"&gt;&lt;aria&gt;\u7c89\u4e1d\u7b2c1\u540d\uff1a\u6211\u662f\u5927\u5e05\u54e5.&lt;\/aria&gt;&lt;\/div&gt;\r\n     &lt;div class=\"rel\"&gt;\r\n      &lt;aria&gt;\u7c89\u4e1d\u7b49\u7ea7\uff1a&lt;\/aria&gt;LV4\r\n    &lt;\/div&gt;\r\n&lt;\/li&gt;\r\n<\/pre>\n<\/li>\n<li>\n<p><code>role<\/code>\u5c5e\u6027\u503c\u8bbe\u7f6e\u4f1a\u8986\u76d6\u539f\u59cb\u7684\u8bed\u4e49\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>&lt;a href role=\"option\"&gt;\r\n  \u603b\u5171\u6d88\u8d39&lt;output&gt;500&lt;\/output&gt;\u5143\r\n&lt;\/a&gt;<\/pre>\n<p>\u8bfb\uff1a\u201c\u5171\u6d88\u8d39500\u5143\u201d\uff0c\u4e0d\u4f1a\u63d0\u793a\u201c\u94fe\u63a5\u201d\u3002<\/p>\n<p>\u7531\u4e8e<code>&lt;option&gt;<\/code>\u6807\u7b7e\u91cc\u9762\u53ea\u80fd\u662f\u7eaf\u6587\u672c\uff0c\u56e0\u6b64\uff0c<code>role=\"option\"<\/code>\u8fde\u91cc\u9762\u7684\u4e00\u5207\u8bed\u4e49\u4e5f\u4f1a\u5ffd\u7565\uff0c\u4e8e\u662f\uff1a<\/p>\n<pre>&lt;li role=\"option\"&gt;\r\n  &lt;a href&gt;\r\n    \u603b\u5171\u6d88\u8d39&lt;output&gt;500&lt;\/output&gt;\u5143\r\n  &lt;\/a&gt;\r\n&lt;\/li&gt;<\/pre>\n<p>\u8bfb\uff1a\u201c\u5171\u6d88\u8d39500\u5143\u201d\uff0c\u4e0d\u4f1a\u63d0\u793a\u201c\u94fe\u63a5\u201d\u3002<\/p>\n<p>\u5982\u679c\u9047\u5230\u8fd9\u79cd\u5c34\u5c2c\uff0c\u53ef\u4ee5\u8fd9\u4e48\u5904\u7406\uff1a<\/p>\n<pre>&lt;li role=\"link\"&gt;\r\n  &lt;a href role=\"option\"&gt;\r\n    \u603b\u5171\u6d88\u8d39&lt;output&gt;500&lt;\/output&gt;\u5143\r\n  &lt;\/a&gt;\r\n&lt;\/li&gt;\r\n<\/pre>\n<p>\u4e5f\u5c31\u662f\u539f\u8bed\u4e49\u5916\u7f6e\u3002\u6b64\u65f6\u8bfb\uff1a\u201c\u5171\u6d88\u8d39500\u5143\uff0c\u94fe\u63a5\u201d\uff0c\u8fd9\u4e0b\u6ca1\u6bdb\u75c5\u4e86\u3002<\/p>\n<\/li>\n<\/ol>\n<h4>3. \u4ea4\u4e92\u4e0earia<\/h4>\n<ol>\n<li>\n<p>VoiceOver\u5f00\u542f\u65f6\uff0c\u539f\u6765\u7684<code>touchmove<\/code>\u662f\u9ad8\u6210\u672c\u64cd\u4f5c\uff0c\u56e0\u6b64\uff0c\u9700\u8981\u589e\u52a0\u8be6\u7ec6\u7684\u63cf\u8ff0\u4fe1\u606f\uff0c\u5426\u5219\u7528\u6237\u6839\u672c\u4e0d\u77e5\u9053\u662f\u4e2a\u4ec0\u4e48\u9b3c\uff1f\u4f8b\u5982\u4e0b\u9762\u4e00\u6bb5\u622a\u56fe\u793a\u610f\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201701\/ad-slide.png\" alt=\"\u8be6\u7ec6\u63cf\u8ff0\u793a\u610f\" width=\"480\" height=\"78\"><\/p>\n<\/li>\n<li>\n<p>\u590d\u6742\u4ea4\u4e92\u573a\u666f\uff0c\u6216\u8005\u548c\u539f\u751f\u63a7\u4ef6\u4ea4\u4e92\u4e0d\u4e00\u81f4\u7684\u4ea4\u4e92\u573a\u666f\uff0c\u9700\u8981\u6dfb\u52a0\u4ea4\u4e92\u573a\u666f\u63cf\u8ff0\uff0c\u4f8b\u5982\u4e0b\u9762\u793a\u610f\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201701\/code-from.png\" alt=\"\u81ea\u5b9a\u4e49\u4e0b\u62c9\u4ea4\u4e92\u622a\u56fe\" width=\"384\" height=\"115\"><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201701\/code-1.png\" alt=\"\u4ee3\u7801\u793a\u610f\u622a\u56fe1\" width=\"547\" height=\"53\"><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201701\/code-2.png\" alt=\"\u4ee3\u7801\u793a\u610f\u622a\u56fe2\" width=\"623\" height=\"66\"><\/p>\n<\/li>\n<li>\n<p>\u9700\u8981\u540c\u6b65\u6539\u53d8\u63cf\u8ff0\u548c\u72b6\u6001\uff0c\u4f8b\u5982\u9762\u677f\u5c55\u5f00\u548c\u6536\u8d77\u7684\u65f6\u5019\uff0c\u4f8b\u5982\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201701\/more-aria-1.png\" alt=\"\u5217\u8868\u6536\u8d77\u65f6\u5019\u622a\u56fe\" width=\"351\" height=\"248\"><\/p>\n<p>\u6b64\u65f6\uff0c\u5148\u8981\u4f7f\u7528<code>role=\"menuitem\"<\/code>\u5b9a\u4e49\u662f\u83dc\u5355\u9879\uff0c\u7136\u540e\u4f7f\u7528<code>aria-expanded<\/code>\u6807\u8bb0\u662f\u5c55\u5f00\u8fd8\u662f\u6536\u8d77\uff0cVoiceOver\u4f1a\u81ea\u52a8\u6839\u636e\u6b64\u72b6\u6001\u503c\u8bfb\u51fa\u5bf9\u5e94\u7684\u4e2d\u6587\u72b6\u6001\u63cf\u8ff0\u7684\u3002<\/p>\n<pre>&lt;a href class=\"icon-more\" title=\"\u66f4\u591a\" role=\"menuitem\" <span style=\"color:#cd0000;\">aria-expanded=\"false\"<\/span>&gt;&lt;\/a&gt;<\/pre>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201701\/more-aria-2.png\" alt=\"\u5217\u8868\u5c55\u5f00\u65f6\u5019\u622a\u56fe\" width=\"356\" height=\"275\"><\/p>\n<p>\u5c55\u5f00\u65f6\u5019<code>aria-expanded<\/code>\u8bbe\u4e3a<code>true<\/code>\uff1a<\/p>\n<pre>&lt;a href class=\"icon-more\" title=\"\u6536\u8d77\u66f4\u591a\" role=\"menuitem\" <span style=\"color:#cd0000;\">aria-expanded=\"true\"<\/span>&gt;&lt;\/a&gt;<\/pre>\n<p>\u4e0a\u9762\u4f8b\u5b50\u4e2d\u7684<code>aria-expanded<\/code>\u5c31\u662fARIA\u4e2d\u7684\u72b6\u6001\u5c5e\u6027\uff0c\u5e38\u7528\u7684\u5176\u4ed6\u5c5e\u6027\u8fd8\u5305\u62ec\uff08\u9700\u8981\u914d\u5408\u7279\u5b9a\u7684<code>role<\/code>\u5c5e\u6027\u503c\u624d\u6709\u6548\uff09\uff1a<\/p>\n<ul>\n<li><code>aria-expanded<\/code> \u5c55\u5f00\u8fd8\u662f\u6536\u8d77\uff0c\u83dc\u5355\uff0c\u81ea\u5b9a\u4e49\u4e0b\u62c9\u7b49\u7528\u7684\u6bd4\u8f83\u591a\u3002<\/li>\n<li><code>aria-checked<\/code> \u9009\u4e2d\u8fd8\u662f\u672a\u9009\u3002<\/li>\n<li><code>aria-selected<\/code> \u9009\u4e2d\u8fd8\u662f\u672a\u9009\u3002<\/li>\n<li><code>aria-disabled<\/code> \u7981\u7528\u8fd8\u662f\u53ef\u7528\u3002<\/li>\n<li><code>aria-hidden<\/code> \u9690\u85cf\u8fd8\u662f\u663e\u793a\u3002<\/li>\n<li><code>aria-invalid<\/code> \u9a8c\u8bc1\u6b63\u786e\u8fd8\u662f\u9519\u8bef\u3002<\/li>\n<\/ul>\n<p>\u5176\u4e2d<code>aria-checked<\/code>\u548c<code>aria-selected<\/code>\u542b\u4e49\u7c7b\u4f3c\uff0c\u90a3\u4ec0\u4e48\u65f6\u5019\u8be5\u7528\u4ec0\u4e48\u5462\uff1f<\/p>\n<p><code>aria-checked<\/code>\u591a\u7528\u5728\u5355\u9009\u590d\u9009\u4e0a\uff0c<code>aria-selected<\/code>\u591a\u7528\u5728\u4e0b\u62c9\u5217\u8868\u4e0a\uff0c\u6216\u8005\u9009\u9879\u5361\uff08<code>role=\"tab\"<\/code>\uff09\u4e0a\u3002<\/p>\n<p>\u8bf4\u5230<code>role=\"tab\"<\/code>\u9009\u9879\u5361\uff0c\u6709\u4e00\u4e2a\u6ce8\u610f\u70b9\u9700\u8981\u63d0\u4e00\u4e0b\uff0c<code>role=\"tab\"<\/code>\u4e00\u5b9a\u8981\u52a0\u5728\u5e73\u7ea7\u7684\u5144\u5f1f\u5143\u7d20\u4e0a\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>&lt;nav&gt;\r\n  &lt;h3 role=\"tab\"&gt;\r\n    &lt;a href&gt;\u9009\u9879\u53611&lt;\/a&gt;\r\n  &lt;\/h3&gt;\r\n  &lt;h3 role=\"tab\"&gt;\r\n    &lt;a href&gt;\u9009\u9879\u53612&lt;\/a&gt;\r\n  &lt;\/h3&gt;\r\n  &lt;h3 role=\"tab\"&gt;\r\n    &lt;a href&gt;\u9009\u9879\u53613&lt;\/a&gt;\r\n  &lt;\/h3&gt;\r\n&lt;\/nav&gt;<\/pre>\n<p>\u5343\u4e07\u4e0d\u8981\u8fd9\u6837\uff1a<\/p>\n<pre>&lt;nav&gt;\r\n  &lt;h3&gt;\r\n    &lt;a href role=\"tab\"&gt;\u9009\u9879\u53611&lt;\/a&gt;\r\n  &lt;\/h3&gt;\r\n  &lt;h3&gt;\r\n    &lt;a href role=\"tab\"&gt;\u9009\u9879\u53612&lt;\/a&gt;\r\n  &lt;\/h3&gt;\r\n  &lt;h3&gt;\r\n    &lt;a href role=\"tab\"&gt;\u9009\u9879\u53613&lt;\/a&gt;\r\n  &lt;\/h3&gt;\r\n&lt;\/nav&gt;<\/pre>\n<p>\u56e0\u4e3a\u540e\u9762\u6bcf\u4e2a\u9009\u9879\u5361\u4f1a\u8ba4\u4e3a\u5c31\u4e00\u4e2a\u5355\u72ec\u7684\u9009\u9879\u5361\uff0c\u8bfb\u201c\u51711\u4e2a\u201d\uff0c\u524d\u8005\u53ef\u4ee5\u6b63\u786e\u8bfb\u201c\u51713\u4e2a\u201d\u3002\u53e6\u5916\uff0cVoiceOver\u8bfb\u53d6\u7684\u65f6\u5019\u4e0d\u662f\u8bfb\u201c\u9009\u9879\u5361\u201d\uff0c\u542c\u4e0a\u53bb\u662f\u201c\u6807\u95f4\u201d\uff0c\u5f00\u623f\u5417\uff1f<\/p>\n<\/li>\n<\/ol>\n<p><strong>aria\u4ea4\u4e92\u542f\u793a<\/strong><\/p>\n<ol>\n<li>\u6d6e\u5c42\u534a\u900f\u660e\u906e\u7f69\u5982\u679c\u6709\u4ea4\u4e92\uff0c\u9700\u5206\u5c42\uff0c\u5e76\u8bbe\u7f6e<code>role<\/code>\uff0c\u5982\u679c\u70b9\u51fb\u6574\u7247\u533a\u57df\u90fd\u6709\u884c\u4e3a\uff0c\u4e0d\u8981\u53d6\u5de7\u4f7f\u7528\u5192\u6ce1\uff0c\u56e0\u4e3a\u5728\u65e0\u969c\u788d\u5904\u7406\u7684\u65f6\u5019\u4f1a\u5f88\u5570\u55e6\uff0c\u76f4\u63a5\u4f7f\u7528\u4e00\u4e2a\u900f\u660e\u56fe\u5c42\u8986\u76d6\uff0c\u8bbe\u7f6e\u5408\u9002\u7684<code>role<\/code>\u4ee5\u53ca\u63cf\u8ff0\uff1b<\/li>\n<li>\u6d6e\u5c42\u53f3\u4e0a\u89d2\u8981\u6709\u5173\u95ed\u6309\u94ae\uff0c\u54ea\u6015\u662f\u900f\u660e\u7684\uff0c\u5343\u4e07\u4e0d\u8981\u4fe1\u4e86\u8bbe\u8ba1\u5e08\u7684\u90aa\uff0c\u8ba4\u4e3a\u4f8b\u5982\uff0c\u5f39\u6846\u4e0a\u6709\u53d6\u6d88\u6309\u94ae\uff0c\u8fd8\u641e\u4e2a\u5173\u95ed\u5e72\u4ec0\u4e48\uff0c\u4e0d\u597d\u770b\u5570\u55e6\u3002\u5176\u5b9e\u5bf9\u4e8e\u89c6\u529b\u4e0d\u597d\u7684\u7528\u6237\uff0c\u6700\u4e60\u60ef\u7684\u662f\u53bb\u5c4f\u5e55\u53f3\u4e0a\u533a\u57df\u627e\u5230\u5173\u95ed\u6309\u94ae\u3002\u53c8\u6216\u8005\u6d6e\u5c42\u53ef\u4ee5\u76f4\u63a5\u624b\u6307\u4e00\u5212\u79fb\u51fa\uff0c\u4e0d\u9700\u8981\u5173\u95ed\u6309\u94ae\uff0c\u90a3\u90fd\u662f\u5f88\u81ea\u4ee5\u4e3a\u662f\u7684\u60f3\u6cd5\u3002\u5982\u679c\u8bbe\u8ba1\u5e08\u575a\u6301\uff0c\u6211\u4eec\u505a\u5f00\u53d1\u7684\u4e5f\u9700\u8981\u5728\u53f3\u4e0a\u89d2\u52a0\u4e00\u4e2a\u6b63\u5e38\u7528\u6237\u770b\u4e0d\u89c1\u7684\u900f\u660e\u7684\u5173\u95ed\u6309\u94ae\uff0c\u8bfb\u5c4f\u8bbe\u5907\u662f\u53ef\u4ee5\u83b7\u53d6\u7684\u3002\u6d6e\u5c42\u5173\u4e0d\u6389\u662f\u975e\u5e38\u975e\u5e38\u4f53\u9a8c\u5dee\u7684\u4e00\u4ef6\u4e8b\u60c5\u3002<\/li>\n<li>\u81ea\u5b9a\u4e49\u63a7\u4ef6\u6700\u597d\u4f7f\u7528\u539f\u751f\u63a7\u4ef6\u8986\u76d6(opacity:0)\uff0c\u56e0\u4e3a\u4f60\u8fd9\u6837\u5904\u7406\u540e\uff0c\u6839\u672c\u4e0d\u8981\u518d\u6709\u4efb\u4f55\u989d\u5916\u7684HTML\u6216\u8005JS\u652f\u6301\u5c31\u80fd\u6709\u5b8c\u7f8e\u7684\u65e0\u969c\u788d\u8bbf\u95ee\u4e86\u3002<\/li>\n<li>\u4ea4\u4e92\u6837\u5f0f\u6539\u53d8\u53ef\u4ee5\u5c1d\u8bd5\u76f4\u63a5\u4f7f\u7528aria\u5c5e\u6027\u63a7\u5236\uff0c\u4e00\u4e3e\u4e24\u5f97\uff0c\u4f8b\u5982\uff0c\u4f7f\u7528<code>aria-checked<\/code>\u5c5e\u6027\u800c\u4e0d\u662f<code>.checked<\/code>\u7c7b\u540d\uff0c\u53ef\u4ee5\u6709\u6548\u964d\u4f4e\u540e\u671f\u65e0\u969c\u788d\u652f\u6301\u6210\u672c\u3002<\/li>\n<li>\u907f\u514d\u81ea\u5b9a\u4e49\u7684<code>touchmove<\/code>\u4ea4\u4e92\uff0c\u56e0\u4e3a\u5f00\u542f\u8bfb\u5c4f\u6a21\u5f0f\u540e\uff0c<code>touchmove<\/code>\u4ea4\u4e92\u6210\u672c\u5f88\u9ad8\uff1b<\/li>\n<\/ol>\n<h4>4. \u5176\u4ed6ARIA\u65e0\u969c\u788d\u652f\u6301\u7ecf\u9a8c\u8865\u5145<\/h4>\n<ol>\n<li><strong>\u5c06\u89c6\u89c9\u4fe1\u606f\u8f6c\u6362\u6210\u6587\u5b57\u4fe1\u606f<\/strong>\n<p>\u4f8b\u5982\u4e0b\u56fe\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201701\/2017-01-20_205738.png\" alt=\"\u641c\u7d22\u5217\u8868\u6548\u679c\u793a\u610f\" width=\"368\" height=\"183\"><\/p>\n<p>\u8fd9\u662f\u4e2a\u641c\u7d22\u5217\u8868\uff0c\u5176\u4e2d\uff0c\u6709\u4e24\u4e2a\u5c0f\u8272\u5757\uff0c\u6211\u4eec\u4e00\u770b\u5c31\u80fd\u770b\u660e\u767d\u662f\u201c\u6807\u7b7e\u201d\uff0c\u800c\u540e\u97622\u4e2a\u5217\u8868\u53f3\u4fa7\u662f\u7070\u8272\u6587\u5b57\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u51fa\u6765\u662f\u4f5c\u8005\u540d\u3002\u4f46\u662f\uff0c\u5bf9\u4e8e\u9760\u89e6\u6478\u7684\u76f2\u4eba\u7528\u6237\uff0c\u989c\u8272\uff0c\u5927\u5c0f\u5305\u62ec\u4f4d\u7f6e\u90fd\u662f\u770b\u4e0d\u5230\u7684\uff0c\u56e0\u6b64\uff0c\u4ed6\u5c31\u5f88\u96be\u533a\u5206\u8fd9\u4e9b\u4fe1\u606f\u662f\u4ec0\u4e48\u610f\u601d\uff0cVoiceOver\u4f1a\u8fd9\u4e48\u8bfb\uff1a<\/p>\n<p style=\"font-family: kaiti;\">\u5deb\u5996\u738b\u4f5c\u8005<br \/>\n\u6b66\u4fa0\u5206\u7c7b<br \/>\n\u6b66\u8bf4\u8c2d\u5bb6\u4e09\u5341<br \/>\n\u6b66\u4fa0\u4e16\u754c\u72ec\u5b64\u8d77\u6b65\n<\/p>\n<p>\u4f30\u8ba1\u7528\u6237\u5fc3\u4e2d\u662f\u8fd9\u5e45\u8868\u60c5\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201701\/2017-01-20_210109.png\" alt=\"\u9ed1\u4eba\u95ee\u53f7\" width=\"242\" height=\"158\"><\/p>\n<p>\u56e0\u6b64\uff0c\u6211\u4eec\u9700\u8981\u5c06\u89c6\u89c9\u4fe1\u606f\u8f6c\u6362\u6210\u6587\u5b57\uff0c\u6211\u7684\u505a\u6cd5\u5c06\u5fc5\u8981\u7684\u6587\u5b57\u5185\u5bb9\u4f7f\u7528<code>clip<\/code>\u9690\u85cf\u653e\u5728\u6807\u7b7e\u4e2d\uff1a<\/p>\n<pre>aria { \r\n  position: absolute;\r\n  clip: rect(0,0,0,0);\r\n}<\/pre>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201701\/2017-01-20_210414.png\" alt=\"\u6587\u5b57\u9690\u85cf\u793a\u610f\" width=\"461\" height=\"481\"><\/p>\n<p>\u6b64\u65f6\uff0c\u8bbe\u5907\u8bfb\u53d6\u5c31\u662f\uff1a<\/p>\n<p style=\"font-family: kaiti;\">\u5deb\u5996\u738b \u6807\u7b7e\uff1a\u4f5c\u8005<br \/>\n\u6b66\u4fa0 \u6807\u7b7e\uff1a\u5206\u7c7b<br \/>\n\u6b66\u8bf4 \u4f5c\u8005\uff1a\u8c2d\u5bb6\u4e09\u5341<br \/>\n\u6b66\u4fa0\u4e16\u754c \u4f5c\u8005\uff1a\u72ec\u5b64\u8d77\u6b65\n<\/p>\n<\/li>\n<li><strong>\u5c0f\u533a\u57df\u91cd\u8981\u6807\u5fd7\u4fe1\u606f\u5408\u5e76<\/strong>\n<p>\u6709\u4e9b\u4fe1\u606f\u5f88\u91cd\u8981\uff0c\u4f46\u662f\u5360\u636e\u7a7a\u95f4\u5f88\u5c0f\uff0c\u6216\u8005\u9690\u853d\uff0c\u6b64\u65f6\uff0c\u6700\u597d\u4fe1\u606f\u5408\u5e76\uff0c\u4f8b\u5982\uff0c\u56fe\u4e66\u4e0a\u7684\u9650\u514d\u6807\u5fd7\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201701\/2017-01-20_210713.png\" alt=\"\u56fe\u4e66\u4e0a\u7684\u9650\u514d\u6807\u5fd7\" width=\"177\" height=\"137\"><\/p>\n<p>\u6211\u4eec\u53ef\u4ee5\u7ed9\u201c\u9650\u514d\u201d\u6807\u5fd7\u8bbe\u7f6e<code>aria-hidden=\"true\"<\/code>\uff0c\u7136\u540e\u628a\u8be5\u4fe1\u606f\u548c\u56fe\u7247\u4fe1\u606f\u5408\u5e76\uff0c\u5982\u4e0b\u4ee3\u7801\u622a\u56fe\u793a\u610f\uff1a<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201701\/2017-01-20_210913.png\" alt=\"\u201c\u9650\u514d\u201d\u4fe1\u606f\u5408\u5e76\u4ee3\u7801\u793a\u610f\"><\/p>\n<\/li>\n<li><strong>\u5173\u4e8eSVG\u7684\u65e0\u969c\u788d\u8bbf\u95ee<\/strong>\n<p>\u8bf7\u95ee\uff0c\u6709\u4e2aSVG\u56fe\u6807\u4ee3\u7801\u5982\u4e0b\uff0c\u6e05\u9664\u8f7b\u89e6\u662f\u5426\u4f1a\u6709\u4fe1\u606f\u8bfb\u53d6\uff1f<\/p>\n<pre>&lt;svg class=\"icon icon-arrow-l\u201d&gt;\r\n    &lt;title&gt;\u8fd4\u56de&lt;\/title&gt;\r\n    &lt;use xlink:href=\"#icon-arrow-l\"&gt;&lt;\/use&gt;\r\n&lt;\/svg&gt;\r\n<\/pre>\n<p>\u7ed3\u679c\uff0c\u53ea\u4f1a\u8bfb\u201c\u56fe\u50cf\u201d\uff0c\u7136\u540e\u5c31\u6ca1\u6709\u7136\u540e\u4e86\u3002\u8fd9\u5176\u5b9e\u8ddf\u4e0a\u9762<code>role=\"img\"<\/code>\u7684<code>&lt;i&gt;<\/code>\u6807\u7b7e\u91cc\u9762\u6587\u5b57\u4e0d\u8bfb\u539f\u7406\u662f\u4e00\u6837\u7684\uff0c\u5c31\u662f\u539f\u751f\u56fe\u50cf\u91cc\u9762\u662f\u4e0d\u4f1a\u6709\u6587\u5b57\u4fe1\u606f\u7684\uff0c\u56e0\u6b64\uff0c\u8fd9\u91cc<code>&lt;title&gt;<\/code>\u6807\u7b7e\u4e2d\u7684\u201c\u8fd4\u56de\u201d\u5c31\u88ab\u5ffd\u7565\u4e86\u3002<\/p>\n<p>\u8fd8\u6ca1\u5b8c\uff0c\u6211\u4eec\u770b\u4e0b\u9762\u7684HTML\u4ee3\u7801\uff1a<\/p>\n<pre>&lt;a href&gt;\r\n  &lt;svg class=\"icon icon-arrow-l\u201d&gt;\r\n    &lt;title&gt;\u8fd4\u56de&lt;\/title&gt;\r\n    &lt;use xlink:href=\"#icon-arrow-l\"&gt;&lt;\/use&gt;\r\n  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