{"id":8559,"date":"2019-03-24T21:53:44","date_gmt":"2019-03-24T13:53:44","guid":{"rendered":"https:\/\/www.zhangxinxu.com\/wordpress\/?p=8559"},"modified":"2021-04-19T14:03:45","modified_gmt":"2021-04-19T06:03:45","slug":"css-focus-visible","status":"publish","type":"post","link":"https:\/\/www.zhangxinxu.com\/wordpress\/2019\/03\/css-focus-visible\/","title":{"rendered":"CSS :focus-visible\u4f2a\u7c7b\u8ba9\u6211\u611f\u52a8\u54ed\u4e86"},"content":{"rendered":"<p>by <a href=\"https:\/\/www.zhangxinxu.com\/\">zhangxinxu<\/a> from <a href=\"https:\/\/www.zhangxinxu.com\/wordpress\/?p=8559\">https:\/\/www.zhangxinxu.com\/wordpress\/?p=8559<\/a><br \/>\n\u672c\u6587\u53ef\u5168\u6587\u8f6c\u8f7d\uff0c\u4e2a\u4eba\u7f51\u7ad9\u65e0\u9700\u6388\u6743\uff0c\u53ea\u8981\u4fdd\u7559\u539f\u4f5c\u8005\u3001\u51fa\u5904\u4ee5\u53ca\u6587\u4e2d\u94fe\u63a5\u5373\u53ef\uff0c\u4efb\u4f55\u7f51\u7ad9\u5747\u53ef\u6458\u8981\u805a\u5408\uff0c\u5546\u7528\u8bf7\u8054\u7cfb\u6388\u6743\u3002<br \/>\n<script>window.wxShareImgUrl = 'https:\/\/www.zhangxinxu.com\/study\/image\/share\/201903-focus-visible.jpg';<\/script><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/blog\/201903\/focus-visible-thumb.jpg\" width=\"484\" height=\"300\" alt=\"focus-visible\u7f29\u7565\u56fe\" class=\"alignnone clip size-medium\" \/><\/p>\n<h3>\u4e00\u3001\u5feb\u901f\u4e86\u89e3CSS :focus-visible\u4f2a\u7c7b<\/h3>\n<p><code>:focus-visible<\/code>\u4f2a\u7c7b\u662f\u975e\u5e38\u5e74\u8f7b\u7684\u4e00\u4e2a\u4f2a\u7c7b\uff0c\u76ee\u524d\u4ec5Chrome\u6d4f\u89c8\u5668\u6807\u51c6\u652f\u6301\uff0c\u4f46\u8db3\u591f\u4e86\u3002\u5982\u679c\u4f60\u662f\u4e00\u4e2a\u6df1\u5165\u7528\u6237\u4f53\u9a8c\u7684\u5f00\u53d1\u8005\uff0c\u8fd9\u4e2a\u4f2a\u7c7b\u4f1a\u975e\u5e38\u6709\u7528\u3002<\/p>\n<p><code>:focus-visible<\/code>\u4f2a\u7c7b\u5e94\u7528\u7684\u573a\u666f\u662f\uff1a\u5143\u7d20\u805a\u7126\uff0c\u540c\u65f6\u805a\u7126\u8f6e\u5ed3\u6d4f\u89c8\u5668\u8ba4\u4e3a\u5e94\u8be5\u663e\u793a\u3002<\/p>\n<p>\u662f\u4e0d\u662f\u5f88\u62d7\u53e3\uff1f\u89c4\u8303\u5c31\u662f\u8fd9\u4e48\u5b9a\u4e49\u7684\u3002<code>:focus-visible<\/code>\u7684\u89c4\u8303\u5e76\u6ca1\u6709\u5f3a\u884c\u7ea6\u675f\u5339\u914d\u903b\u8f91\uff0c\u800c\u662f\u4ea4\u7ed9\u4e86UA\uff08\u4e5f\u5c31\u662f\u6d4f\u89c8\u5668\uff09\u3002\u6211\u4eec\u901a\u8fc7\u771f\u5b9e\u7684\u6848\u4f8b\u6765\u89e3\u91ca\u4e0b\u8fd9\u4e2a\u4f2a\u7c7b\u662f\u505a\u4ec0\u4e48\u7528\u7684\u3002<\/p>\n<p>\u5728\u6240\u6709\u73b0\u4ee3\u6d4f\u89c8\u5668\u4e0b\uff0c\u94fe\u63a5\u5143\u7d20<code>&lt;a&gt;<\/code>\u9f20\u6807\u70b9\u51fb\u7684\u65f6\u5019\u662f\u4e0d\u4f1a\u6709\u7126\u70b9\u8f6e\u5ed3\u7684\uff0c\u4f46\u662f\u952e\u76d8\u8bbf\u95ee\u7684\u65f6\u5019\u4f1a\u51fa\u73b0\uff0c\u8fd9\u662f\u975e\u5e38\u7b26\u5408\u9884\u671f\u7684\u4f53\u9a8c\u3002<\/p>\n<p>\u4f46\u662f\u5728Chrome\u6d4f\u89c8\u5668\u4e0b\uff0c\u51fa\u73b0\u4e86\u4e00\u4e9b\u7279\u6b8a\u573a\u666f\u5e76\u4e0d\u662f\u8fd9\u4e48\u8868\u73b0\u7684\uff1a<\/p>\n<ol>\n<li>\u8bbe\u7f6e\u4e86\u80cc\u666f\u7684<code>&lt;button&gt;<\/code>\u6309\u94ae\uff1b<\/li>\n<li>HTML5 <code>&lt;summary&gt;<\/code>\u5143\u7d20\uff1b<\/li>\n<li>\u8bbe\u7f6e\u4e86HTML <code>tabindex<\/code>\u5c5e\u6027\u7684\u5143\u7d20\uff1b<\/li>\n<\/ol>\n<p>\u4ee5\u4e0a3\u4e2a\u573a\u666f\uff0c\u5728Chrome\u6d4f\u89c8\u5668\u4e0b\u9f20\u6807\u70b9\u51fb\u7684\u65f6\u5019\u4e5f\u4f1a\u51fa\u73b0\u663e\u773c\u7684\u7126\u70b9\u8f6e\u5ed3\uff0c\u5982\u4e0b\u56fe\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/201903\/focus-outline2.png\" width=\"308\" height=\"140\" alt=\"\u8bbe\u7f6etabindex\u5143\u7d20\u9f20\u6807\u70b9\u51fb\u51fa\u73b0\u8f6e\u5ed3\"><\/p>\n<p>\u8fd9\u5176\u5b9e\u662f\u6211\u4eec\u4e0d\u5e0c\u671b\u770b\u5230\u7684\uff0c\u8f6e\u5ed3\u5728\u70b9\u51fb\u7684\u65f6\u5019\u4e0d\u5e94\u8be5\u51fa\u73b0\uff08\u6ca1\u6709\u9ad8\u4eae\u7684\u5fc5\u8981\uff09\uff0c\u4f46\u662f\u952e\u76d8\u8bbf\u95ee\u7684\u65f6\u5019\u9700\u8981\u51fa\u73b0\uff08\u8ba9\u7528\u6237\u77e5\u9053\u5f53\u524d\u805a\u7126\u5143\u7d20\uff09\uff0cFirefox\u4ee5\u53caIE\u6d4f\u89c8\u5668\u7684\u8868\u73b0\u5747\u7b26\u5408\u6211\u4eec\u7684\u671f\u671b\uff0c\u70b9\u51fb\u8bbf\u95ee\u65e0\u8f6e\u5ed3\uff0c\u952e\u76d8\u8bbf\u95ee\u624d\u6709\uff0cSafari\u6d4f\u89c8\u5668\u6309\u94ae\u8868\u73b0\u7b26\u5408\u671f\u671b\u3002<\/p>\n<p>\u4f46\u662f\uff0c\u6211\u4eec\u53c8\u4e0d\u80fd\u7b80\u7b80\u5355\u5355\u8bbe\u7f6e<code>outline:none<\/code>\u6765\u5904\u7406\uff0c\u56e0\u4e3a\u8fd9\u6837\u4f1a\u628a\u952e\u76d8\u8bbf\u95ee\u65f6\u5019\u5e94\u5f53\u51fa\u73b0\u7684\u7126\u70b9\u8f6e\u5ed3\u7ed9\u9690\u85cf\u6389\uff0c\u5e26\u6765\u4e25\u91cd\u7684\u65e0\u969c\u788d\u8bbf\u95ee\u95ee\u9898\u3002<\/p>\n<p>\u4e3a\u4e86\u517c\u987e\u89c6\u89c9\u4f53\u9a8c\u548c\u952e\u76d8\u65e0\u969c\u788d\u8bbf\u95ee\uff0c\u6211\u4e4b\u524d\u7684\u505a\u6cd5\u662f\u4f7f\u7528JavaScript\u8fdb\u884c\u5224\u65ad\uff0c\u5982\u679c\u5143\u7d20\u7684<code>:focus<\/code>\u89e6\u53d1\u662f\u952e\u76d8\u8bbf\u95ee\u89e6\u53d1\uff0c\u5c31\u7ed9\u5143\u7d20\u6dfb\u52a0\u81ea\u5b9a\u4e49\u7684<code>outline<\/code>\u8f6e\u5ed3\uff0c\u5426\u5219\uff0c\u53bb\u9664<code>outline<\/code>\uff0c\u8fd8\u662f\u9887\u6709\u6210\u672c\u7684\u3002<\/p>\n<p>\u73b0\u5728\u6709\u4e86<code>:focus-visible<\/code>\u4f2a\u7c7b\uff0c\u6240\u6709\u7684\u95ee\u9898\u8fce\u5203\u800c\u89e3\uff0c\u5728\u76ee\u524d\u7248\u672c\u7684Chrome\u6d4f\u89c8\u5668\u4e0b\uff0c\u6d4f\u89c8\u5668\u8ba4\u4e3a\u952e\u76d8\u8bbf\u95ee\u89e6\u53d1\u7684\u5143\u7d20\u805a\u7126\u624d\u662f<code>:focus-visible<\/code>\u6240\u8868\u793a\u7684\u805a\u7126\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c<code>:focus-visible<\/code>\u53ef\u4ee5\u8ba9\u6211\u4eec\u77e5\u9053\u5143\u7d20\u7684\u805a\u7126\u884c\u4e3a\u5230\u5e95\u662f\u9f20\u6807\u89e6\u53d1\u8fd8\u662f\u952e\u76d8\u89e6\u53d1\u3002\u6240\u4ee5\uff0c\u5982\u679c\u6211\u4eec\u5e0c\u671b\u53bb\u9664\u9f20\u6807\u70b9\u51fb\u65f6\u5019\u7684<code>outline<\/code>\u8f6e\u5ed3\uff0c\u800c\u4fdd\u7559\u952e\u76d8\u8bbf\u95ee\u65f6\u5019\u7684<code>outline<\/code>\u8f6e\u5ed3\uff0c\u53ea\u8981\u4e00\u6761\u77ed\u77ed\u7684CSS\u89c4\u5219\u5c31\u53ef\u4ee5\u4e86\uff1a<\/p>\n<pre>:focus:not(:focus-visible) {\r\n    outline: 0;\r\n}<\/pre>\n<p>Chrome\u6d4f\u89c8\u5668\u4e0b\u8ba9\u4eba\u5934\u75bc\u7684\u8f6e\u5ed3\u95ee\u9898\u5c31\u89e3\u51b3\u4e86\uff0c\u773c\u89c1\u4e3a\u5b9e\uff0c\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1a<a href=\"https:\/\/www.zhangxinxu.com\/study\/201903\/focus-visible-test-demo.php\" target=\"_blank\">:focus-visible\u4e0eChrome\u6d4f\u89c8\u5668outline\u8f6e\u5ed3\u63a7\u5236demo<\/a><\/p>\n<p>\u6b64\u65f6\uff0c\u6211\u4eec\u70b9\u51fb\u8bbe\u7f6e\u4e86<code>tabindex<\/code>\u5c5e\u6027\u7684<code>&lt;div&gt;<\/code>\u5143\u7d20\u6ca1\u6709\u8f6e\u5ed3\uff0c\u5982\u4e0b\u56fe\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/201903\/outline-focus3.png\" width=\"308\" height=\"140\" alt=\"\u8bbe\u7f6etabindex\u5143\u7d20\u9f20\u6807\u70b9\u51fb\u65e0\u8f6e\u5ed3\"><\/p>\n<p>\u4f46\u662f\uff0c\u5982\u679c\u6211\u4eec\u4f7f\u7528\u952e\u76d8\u8bbf\u95ee\uff0c\u4f8b\u5982\u6309\u4e0bTAB\u952e\u8fdb\u884c\u7d22\u5f15\uff0c\u8f6e\u5ed3\u4f9d\u7136\u5b58\u5728\uff0c\u5982\u5982\u4e0b\u56fe\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/201903\/focus-outline4.png\" width=\"308\" height=\"140\" alt=\"\u8bbe\u7f6etabindex\u5143\u7d20\u952e\u76d8\u8bbf\u95ee\u4f9d\u7136\u6709\u8f6e\u5ed3\"><\/p>\n<p>\u5b8c\u7f8e\uff0c\u611f\u52a8\uff01<\/p>\n<h3>\u4e8c\u3001\u5e94\u8be5\u5f88\u5feb\u5c31\u4f1a\u9ed8\u8ba4\u652f\u6301<\/h3>\n<p>\u76ee\u524dChrome\u6d4f\u89c8\u5668\uff08\u7248\u672c67+\u5c31\u652f\u6301\uff09\u867d\u7136\u652f\u6301\uff0c\u4f46\u662f\uff0c\u9700\u8981\u6d4f\u89c8\u5668\u5f00\u542f\u652f\u6301web\u5b9e\u9a8c\u7279\u6027\u624d\u884c\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/blog\/201903\/2019-03-24_213133.png\" width=\"564\" height=\"403\" alt=\":focus-visible\u4f2a\u7c7b\u517c\u5bb9\u6027\" class=\"alignnone size-medium\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/blog\/201903\/2019-03-24_213356.png\" width=\"769\" height=\"316\" alt=\"\u5f00\u542f\u5b9e\u9a8cweb\u7279\u6027\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u4f46\u662f\u6211\u76f8\u4fe1\uff0c\u5f88\u5feb\u5c31\u4f1a\u9ed8\u8ba4\u653e\u5f00\uff0c\u90fd\u65f6\u5019\uff0c\u4e4b\u524d\u5199UI\u7ec4\u4ef6\u65f6\u5019\u6298\u817e\u7684\u4e00\u5927\u5806\u4f53\u9a8c\u76f8\u5173\u7684JavaScript\u4ee3\u7801\u5c31\u53ef\u4ee5\u5168\u90e8\u5220\u6389\u4e86\u3002<\/p>\n<p>\u5bf9\u4e86\uff0c<code>:focus-visible<\/code>\u4f2a\u7c7b\u662f\u6709\u73b0\u6210\u7684polyfill\u7684\uff0c\u5730\u5740\u662f\uff1a<a href=\"https:\/\/github.com\/WICG\/focus-visible\" rel=\"noopener\" target=\"_blank\">https:\/\/github.com\/WICG\/focus-visible<\/a><\/p>\n<p>\u5982\u679c\u4f60\u8feb\u4e0d\u53ca\u5f85\u60f3\u5728\u9879\u76ee\u4e2d\u5e94\u7528\u8fd9\u4e48\u597d\u7684\u7279\u6027\uff0c\u53ef\u4ee5\u5f15\u5165\u8fd9\u6bb5polyfill\u811a\u672c\u3002<\/p>\n<p>\u53e6\u5916\uff0c<code>:focus-visible<\/code>\u76f8\u5173\u7ec6\u8282\u8981\u6bd4\u672c\u6587\u8981\u4ecb\u7ecd\u7684\u590d\u6742\u7684\u591a\uff0c\u76ee\u524d\u89c4\u8303\u8fd8\u4e0d\u660e\u6717\uff0c\u5148\u4e0d\u5c55\u5f00\u3002<\/p>\n<p><strong>\u66f4\u65b0\u4e8e2021-04-19<\/strong><\/p>\n<p>Chrome 86\u5df2\u7ecf\u5b8c\u5168\u652f\u6301\uff0cSafari TP\u7248\u672c\u4e5f\u652f\u6301\uff0c\u9884\u793a\u7740Safari 15\u53ca\u5176\u4e4b\u540e\u7248\u672c\u4e5f\u4f1a\u652f\u6301\u3002<\/p>\n<p>\u5927\u8d5e\uff01<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202104\/2021-04-19_140054.png\" width=\"559\" height=\"274\" alt=\":focus-visible\u517c\u5bb9\u6027\" class=\"alignnone size-medium\" \/><\/p>\n<h3>\u4e09\u3001\u5173\u4e8e\u8fd9\u5468\u516d\u7684CSS\u5927\u4f1a<\/h3>\n<p>\u6709\u5e78\u7ee7\u7eed\u53c2\u52a0\u4eca\u5e74\u7684CSS\u5927\u4f1a\uff0c\u7b2c\u4e94\u5c4aCSS\u5927\u4f1a\uff08<a href=\"https:\/\/css.w3ctech.com\/\" rel=\"noopener nofollow\" target=\"_blank\">https:\/\/css.w3ctech.com\/<\/a>\uff09\uff0c\u5730\u70b9\u5728\u6df1\u5733\u3002\u5206\u4eab\u5185\u5bb9\u5df2\u7ecf\u51c6\u5907\u5b8c\u6bd5\uff0c\u5148\u4e0d\u5267\u900f\u3002\u7136\u540e\uff0c\u4e70\u4e86\u6211\u7684\u300aCSS\u4e16\u754c\u300b\u7684\u5c0f\u4f19\u4f34\u5230\u65f6\u5019\u53ef\u4ee5\u5e26\u4e66\u8fc7\u53bb\uff0c\u6211\u53ef\u4ee5\u5e2e\u5fd9\u7b7e\u540d\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/emtion\/emoji\/1f603.svg\" width=\"20\" height=\"20\" align=\"absmiddle\"><\/p>\n<p>\u672c\u6587\u4e3a\u539f\u521b\u6587\u7ae0\uff0c\u4f1a\u7ecf\u5e38\u66f4\u65b0\u77e5\u8bc6\u70b9\u4ee5\u53ca\u4fee\u6b63\u4e00\u4e9b\u9519\u8bef\uff0c\u56e0\u6b64\u8f6c\u8f7d\u8bf7\u4fdd\u7559\u539f\u51fa\u5904\uff0c\u65b9\u4fbf\u6eaf\u6e90\uff0c\u907f\u514d\u9648\u65e7\u9519\u8bef\u77e5\u8bc6\u7684\u8bef\u5bfc\uff0c\u540c\u65f6\u6709\u66f4\u597d\u7684\u9605\u8bfb\u4f53\u9a8c\u3002<br \/>\n\u672c\u6587\u5730\u5740\uff1a<a href=\"https:\/\/www.zhangxinxu.com\/wordpress\/?p=8559\">https:\/\/www.zhangxinxu.com\/wordpress\/?p=8559<\/a><\/p>\n<p>\uff08\u672c\u7bc7\u5b8c\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/blog\/201903\/focus-visible-thumb.jpg\" width=\"161\" height=\"100\" alt=\"focus-visible\u7f29\u7565\u56fe\" class=\"alignright size-medium\" 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