{"id":9175,"date":"2020-01-02T23:22:38","date_gmt":"2020-01-02T15:22:38","guid":{"rendered":"https:\/\/www.zhangxinxu.com\/wordpress\/?p=9175"},"modified":"2020-01-02T23:43:54","modified_gmt":"2020-01-02T15:43:54","slug":"css-initial-unset","status":"publish","type":"post","link":"https:\/\/www.zhangxinxu.com\/wordpress\/2020\/01\/css-initial-unset\/","title":{"rendered":"CSS inherit\u662f\u7ee7\u627f\uff0c\u90a3initial\u548cunset\u5462\uff1f"},"content":{"rendered":"<p>by <a href=\"https:\/\/www.zhangxinxu.com\/\">zhangxinxu<\/a> from <a href=\"https:\/\/www.zhangxinxu.com\/wordpress\/?p=5474\">https:\/\/www.zhangxinxu.com\/wordpress\/?p=5474<\/a><br \/>\n\u672c\u6587\u6b22\u8fce\u5206\u4eab\u4e0e\u805a\u5408\uff0c\u5168\u6587\u8f6c\u8f7d\u5c31\u4e0d\u5fc5\u4e86\uff0c\u5c0a\u91cd\u7248\u6743\uff0c\u5708\u5b50\u5c31\u8fd9\u4e48\u5927\uff0c\u82e5\u6025\u7528\u53ef\u4ee5\u8054\u7cfb\u6388\u6743\u3002<\/p>\n<p><script>window.wxShareImgUrl = 'https:\/\/www.zhangxinxu.com\/study\/image\/share\/202001-inital-unset.jpg';<\/script><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/blog\/202001\/inital-unset.jpg\" width=\"483\" height=\"300\" class=\"alignright thumb clip size-medium\" \/><\/p>\n<p>\u6240\u6709CSS\u90fd\u652f\u6301\u51e0\u4e2a\u5168\u5c40\u5c5e\u6027\u503c\uff0c\u5206\u522b\u662f\uff1a<code>inherit<\/code>, <code>initial<\/code>\u548c<code>unset<\/code>\u3002<\/p>\n<p>\u5176\u4e2d<code>inherit<\/code>\u662f\u7ee7\u627f\u7684\u610f\u601d\uff0cIE8\uff08\u6807\u51c6\u7248\uff09\u5f00\u59cb\u652f\u6301\uff0c\u4e0d\u662f\u4eceIE9\u5f00\u59cb\u652f\u6301\u7684\uff0c\u7f51\u4e0a\u4e00\u4e9b\u6587\u6863\u662f\u9519\u8bef\u7684\u3002<code>inherit<\/code>\u662f\u975e\u5e38\u597d\u7528\u7684\u4e00\u4e2aCSS\u5c5e\u6027\u3002<\/p>\n<p>\u4f8b\u5982\uff1a<\/p>\n<pre>input, textarea {\r\n    font-family: inherit;\r\n}<\/pre>\n<p>\u6216\u8005\u5b50\u5143\u7d20<code>height:inherit<\/code>\u6216\u8005\u80cc\u666f<code>background<\/code>\u7ee7\u627f\u7b49\uff0c\u90fd\u662f\u975e\u5e38\u5b9e\u7528\u7684\u573a\u666f\u3002<\/p>\n<p>\u90a3<code>initial<\/code>\u548c<code>unset<\/code>\u8fd9\u4e24\u4e2a\u5173\u952e\u5b57\u503c\u662f\u4ec0\u4e48\u610f\u601d\u5462\uff1f\u5f88\u591a\u524d\u7aef\u5f00\u53d1\u4eba\u5458\u5c31\u4e0d\u77e5\u9053\u4e86\u3002<\/p>\n<h3>\u4e00\u3001\u521d\u59cb\u503cinitial<\/h3>\n<p><code>initial<\/code>\u8868\u793a\u521d\u59cb\u503c\u7684\u610f\u601d\u3002<\/p>\n<p>\u4e3e\u51e0\u4e2a\u4f8b\u5b50\u770b\u770b\u5176\u7ec6\u8282\u8868\u73b0\u3002<\/p>\n<h4>\u6848\u4f8b1\uff1afont-size\u4e0einitial<\/h4>\n<p>\u6d4b\u8bd5\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<pre>&lt;ul style=\"font-size:12px;border:1px solid deepskyblue;\"&gt;\r\n    &lt;li&gt;#\u6731\u4e00\u9f99\u8ffd\u68a6\u4eba#   &lt;small class=\"ml20\"&gt;1\u4ebf&lt;\/small&gt;&lt;\/li&gt;\r\n    &lt;li&gt;#\u5ba0\u7231\u7968\u623f#   &lt;small class=\"ml20\"&gt;3\u4ebf&lt;\/small&gt;&lt;\/li&gt;\r\n    &lt;li&gt;#\u5f20\u827a\u5174\u9189\u62f3\u821e# &lt;small class=\"ml20\"&gt;1\u4ebf&lt;\/small&gt;&lt;\/li&gt;\r\n    &lt;li&gt;#\u8096\u6218\u4f59\u5e74MV# &lt;small class=\"ml20\"&gt;2\u4ebf&lt;\/small&gt;&lt;\/li&gt;\r\n    &lt;li style=\"<span style=\"color:#cd0000;\">font-size:initial<\/span>\"&gt;#\u5f20\u946b\u65ed\u4e2d\u5927\u9c7c# &lt;small class=\"ml20\"&gt;233&lt;\/small&gt;&lt;\/li&gt;\r\n&lt;\/ul&gt;<\/pre>\n<p>\u5b9e\u65f6\u6548\u679c\u5982\u4e0b\uff08Edge 12+\uff0cChrome\uff0cFirefox\u7b49\u6d4f\u89c8\u5668\u6709\u6548\u679c\uff09\uff1a<\/p>\n<ul style=\"font-size:12px;\">\n<li>#\u6731\u4e00\u9f99\u8ffd\u68a6\u4eba#   <small class=\"ml20\">1\u4ebf<\/small><\/li>\n<li>#\u5ba0\u7231\u7968\u623f#   <small class=\"ml20\">3\u4ebf<\/small><\/li>\n<li>#\u5f20\u827a\u5174\u9189\u62f3\u821e# <small class=\"ml20\">1\u4ebf<\/small><\/li>\n<li>#\u8096\u6218\u4f59\u5e74MV# <small class=\"ml20\">2\u4ebf<\/small><\/li>\n<li style=\"font-size:initial\">#\u5f20\u946b\u65ed\u4e2d\u5927\u9c7c# <small class=\"ml20\">233<\/small><\/li>\n<\/ul>\n<p>\u622a\u5c4f\u6548\u679c\u5982\u4e0b\uff0c\u53ef\u4ee5\u770b\u5230\u201c\u5f20\u946b\u65ed\u4e2d\u5927\u9c7c\u201d\u8fd9\u4e2a\u70ed\u641c\u6587\u5b57\u660e\u663e\u5927\u4e86\u4e00\u5708\uff0c\u56e0\u4e3a\u4f7f\u7528\u4e86<code>font-size<\/code>\u7684\u521d\u59cb\u503c\uff0c\u5c31\u662f\u2026\u2026\u2026\u2026\u300aCSS\u4e16\u754c\u300b\u4e2d\u6709\u4e13\u95e8\u5f3a\u8c03\u8fc7\uff0c\u770b\u770b\u662f\u4e0d\u662f\u4f60\u5fc3\u91cc\u9762\u60f3\u7684\u90a3\u4e2a\u503c\uff0c\u90a3\u5c31\u662f<code>medium<\/code>\uff0c\u5982\u679c\u5df2\u7ecf\u5b8c\u5168\u6ca1\u6709\u5370\u8c61\u4e86\uff0c\u300aCSS\u4e16\u754c\u300b\u8fd8\u9700\u8981\u518d\u597d\u597d\u770b\u4e00\u904d\u54e6\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/blog\/202001\/2020-01-02_004121.png\" width=\"277\" height=\"153\" alt=\"\u521d\u59cb\u503c\u6548\u679c\u793a\u610f\" class=\"alignnone size-medium\" \/><\/p>\n<h4>\u6848\u4f8b2\uff1a\u6f02\u4eae\u7684button\u4e00\u79d2\u53d8\u4e11<\/h4>\n<p>\u6709\u4e2a\u7f8e\u7f8e\u7684\u6309\u94ae\uff0c\u5199\u4e86\u5f88\u591aCSS\uff1a<\/p>\n<pre>.ui-button {\r\n    display: inline-block;\r\n    line-height: 20px;\r\n    font-size: 14px;\r\n    text-align: center;\r\n    color: #4c5161;\r\n    border-radius: 4px;\r\n    padding: 10px 15px;\r\n    min-width: 80px;\r\n    border: none;\r\n    background-color: #2a80eb;\r\n    color: #fff;\r\n    box-sizing: border-box;\r\n    font-family: inherit;\r\n    cursor: pointer;\r\n    overflow: visible;\r\n}<\/pre>\n<style>.ui-button {    display: inline-block;    line-height: 20px;    font-size: 14px;    text-align: center; border: none;   color: #4c5161;    border-radius: 4px;    padding: 10px 15px;    min-width: 80px;    background-color: #2a80eb;    color: #fff;    box-sizing: border-box;    font-family: inherit;    cursor: pointer;    overflow: visible;}<\/style>\n<pre>&lt;button class=\"ui-button\"&gt;\u7f8e\u7f8e\u7684\u6309\u94ae&lt;\/button&gt;<\/pre>\n<p>\u7136\u540e\u8fd9\u4e2a\u6309\u94ae\u7684\u5b9e\u65f6\u6548\u679c\u5982\u4e0b\uff1a<\/p>\n<p><button class=\"ui-button\">\u7f8e\u7f8e\u7684\u6309\u94ae<\/button><\/p>\n<p>\u4f60\u4ee5\u4e3a\u4f60\u5927\u529f\u544a\u6210\uff0c\u7a81\u7136\u4ea7\u54c1\u7ecf\u7406\u6765\u4e86\u4e2a\u9700\u6c42\uff0c\u5e0c\u671b\u6211\u4eec\u7684\u9875\u9762\u589e\u52a0\u4e00\u4e2a\u53eb\u539f\u59cb\u76ae\u80a4\u7684\u76ae\u80a4\uff0c\u5728\u8fd9\u4e2a\u76ae\u80a4\u4e0b\u9762\uff0c\u6240\u6709\u7684\u8868\u5355\u63a7\u4ef6\u90fd\u662f\u7528\u539f\u751f\u7684\u6837\u5b50\u3002<\/p>\n<p>\u5982\u679c\u53ea\u8981\u4e00\u4e2a\u6309\u94ae\u8fd8\u597d\uff0cJS\u53bb\u6389\u7c7b\u540d<code>ui-button<\/code>\uff0c\u4f46\u662f\u73b0\u5728\u662f\u6574\u4e2a\u9875\u9762\u6362\u80a4\uff0c\u6709\u90a3\u4e48\u591a\u7684\u6309\u94ae\uff0c\u800c\u4e14\u8fd8\u6709\u6309\u94ae\u8bf4\u4e0d\u5b9a\u662f\u5728JS\u91cc\u9762\u521b\u5efa\u7684\uff0c\u6240\u4ee5\u53bb\u9664\u7c7b\u540d\u8fd9\u79cd\u65b9\u5f0f\u663e\u5f97\u5f88\u9ebb\u70e6\u3002<\/p>\n<p>\u6709\u6ca1\u6709\u4ec0\u4e48\u7b80\u5355\u7684\u529e\u6cd5\u5462\uff1f\u554a\uff0c\u5f88\u7b80\u5355\uff0c\u4e00\u884cCSS\u5c31\u53ef\u4ee5\u4e86\uff0c\u5982\u4e0b\u793a\u610f\uff1a<\/p>\n<pre>&lt;button class=\"ui-button\" style=\"<span style=\"color:#cd0000;\">all: initial<\/span>\"&gt;\u7f8e\u7f8e\u7684\u6309\u94ae&lt;\/button&gt;<\/pre>\n<p>\u5b9e\u65f6\u6548\u679c\u5982\u4e0b\uff1a<\/p>\n<p><button class=\"ui-button\" style=\"all: initial\">\u7f8e\u7f8e\u7684\u6309\u94ae<\/button><\/p>\n<p>\u622a\u56fe\u6548\u679c\u5982\u4e0b\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/blog\/202001\/2020-01-02_223443.png\" width=\"175\" height=\"149\" alt=\"\u7f8e\u7f8e\u7684\u6309\u94ae\u53d8\u6210\u6587\u5b57\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u5927\u5bb6\u770b\u5230\u4e86\u6ca1\uff1f\u8fd9\u5c31\u662f\u4e00\u4e2a\u975e\u5e38\u5178\u578b\uff0c\u975e\u5e38\u5177\u6709\u4ee3\u8868\u6027\u7684\uff0c\u8111\u888b\u74dc\u60f3\u5f53\u7136\uff0c\u7136\u540e\u7ffb\u8f66\u7684\u73b0\u573a\uff01\u5927\u5bb6\u4e00\u5b9a\u8981\u5f15\u4ee5\u4e3a\u6212\uff01<\/p>\n<p><code>all:initial<\/code>\u5e76\u4e0d\u80fd\u628a\u6309\u94ae\u8fd8\u539f\u6210\u6d4f\u89c8\u5668\u539f\u59cb\u6309\u94aeUI\u3002\u56e0\u4e3a\u6d4f\u89c8\u5668\u9ed8\u8ba4\u6309\u94aeCSS\u4e5f\u662f\u989d\u5916\u8bbe\u7f6e\u7684\uff0c\u56e0\u6b64\uff0c<code>all:initial<\/code>\u4f1a\u628a\u6d4f\u89c8\u5668\u5185\u7f6e\u6309\u94ae\u7684CSS\u4e5f\u5168\u90e8\u53d8\u6210\u521d\u59cb\u503c\u4e86\uff0c\u4ec0\u4e48<code>border<\/code>\u8fb9\u6846\u554a\uff0c\u4ec0\u4e48<code>background<\/code>\u80cc\u666f\u5168\u90e8\u90fd\u6ca1\u4e86\uff0c\u7ed3\u679c\u6700\u540e\u5c31\u662f\u4e00\u4e2a\u7eaf\u6587\u672c\u4e00\u6837\u7684\u6309\u94ae\u3002<\/p>\n<p>\u6240\u4ee5\uff0c\u6f02\u4eae\u7684\u6309\u94ae\u4e00\u79d2\u53d8\u4e11\uff0c1\u79d2\u662f\u4e0d\u53ef\u80fd\u7684\u4e86\uff0c\u4e0d\u8fc7\u4e5f\u4e0d\u662f\u6ca1\u6709\u529e\u6cd5\uff0c\u53ef\u4ee5\u501f\u52a9<code>:not()<\/code>\u4f2a\u7c7b\u3002<\/p>\n<pre>body:not('.initial') .ui-button {\r\n    <span style=\"color:green;\">\/* \u7f8e\u7f8e\u7684\u6309\u94ae\u76f8\u5173CSS *\/<\/span>\r\n}<\/pre>\n<h3>\u4e8c\u3001\u4e0d\u56fa\u5b9a\u503cunset<\/h3>\n<p>unset\u8868\u793a\u4e0d\u56fa\u5b9a\u503c\uff0c\u7279\u6027\u5982\u4e0b\uff0c\u5f53\u524d\u5143\u7d20\u6d4f\u89c8\u5668\u6216\u7528\u6237\u8bbe\u7f6e\u7684CSS\u5ffd\u7565\uff0c\u7136\u540e\u5982\u679c\u662f\u5177\u6709\u7ee7\u627f\u7279\u6027\u7684CSS\uff0c\u5982<code>color<\/code>, \u5219\u4f7f\u7528\u7ee7\u627f\u503c\uff1b\u5982\u679c\u662f\u6ca1\u6709\u7ee7\u627f\u7279\u6027\u7684CSS\u5c5e\u6027\uff0c\u5982<code>background-color<\/code>, \u5219\u4f7f\u7528\u521d\u59cb\u503c\u3002<\/p>\n<p>\u8fd8\u662f\u6309\u94ae\u7684\u4f8b\u5b50\uff0c\u5982\u679c\u6211\u4eec\u8fd9\u6837\u6539\u9020\u5462\uff1f<\/p>\n<pre>&lt;button class=\"ui-button\" style=\"<span style=\"color:#cd0000;\">all: unset<\/span>\"&gt;\u7f8e\u7f8e\u7684\u6309\u94ae&lt;\/button&gt;<\/pre>\n<p>\u5b9e\u65f6\u6548\u679c\u5982\u4e0b\uff08Edge 13+\uff0cChrome\uff0cFirefox\u7b49\u6d4f\u89c8\u5668\u6709\u6548\u679c\uff09\uff1a<\/p>\n<p><button class=\"ui-button\" style=\"all: unset\">\u7f8e\u7f8e\u7684\u6309\u94ae<\/button><\/p>\n<p>\u622a\u56fe\u5bf9\u6bd4\u6548\u679c\u5982\u4e0b\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/blog\/202001\/2020-01-02_225436.png\" width=\"512\" height=\"106\" alt=\"\u6309\u94ae\u5bf9\u6bd4\u6548\u679c\u622a\u56fe\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u867d\u7136\u770b\u4f3c\u4e00\u6837\uff0c\u5b9e\u9645\u4e0a\u8fd8\u662f\u6709\u4e0d\u540c\u4e4b\u5904\u7684\uff0c\u4f8b\u5982color\u6587\u5b57\u989c\u8272\uff0c\u524d\u8005\u7eaf\u9ed1\uff0c\u540e\u8005\u6de1\u4e00\u4e9b\uff1b\u53c8\u4f8b\u5982\u6309\u94ae\u7684\u9ad8\u5ea6\uff0c\u7531\u4e8eline-height\u5177\u6709\u7ee7\u627f\u6027\uff0c\u6240\u4ee5\u540e\u9762\u7684\u6309\u94ae\u7ee7\u627f\u4e86\u5f53\u524d\u6587\u7ae0\u6240\u5728\u7684\u884c\u9ad8\uff0c\u800c\u4e0d\u662f<code>normal<\/code>\u521d\u59cb\u503c\u3002<\/p>\n<p>\u672c\u60f3\u518d\u4e3e\u51e0\u4e2a\u9177\u9177\u7684\u4f8b\u5b50\uff0c\u4f46\u662f\u6211\u60f3\u7834\u8111\u888b\u90fd\u60f3\u4e0d\u51fa\u6709\u4ec0\u4e48\u975e\u5e38\u5c4c\u7684\u5e94\u7528\u573a\u666f\uff0c\u7b97\u4e86\u7b97\u4e86\uff0c\u5c31\u8fd9\u6837\u5427\uff0c\u7b49\u6211\u54ea\u5929\u9047\u5230\u54ea\u4e2a\u7279\u6b8a\u7684\u573a\u666f\u7528\u5230\u5b83\u518d\u8865\u5145\u5427\u3002<\/p>\n<h3>\u4e09\u3001\u7b80\u5355\u63d0\u4e00\u63d0revert<\/h3>\n<p><code>revert<\/code>\u4e5f\u662f\u4e00\u4e2a\u5168\u5c40\u503c\uff0c\u8868\u793a\u6062\u590d\uff0c\u53ef\u4ee5\u91cd\u7f6eCSS\u5c5e\u6027\u4e3a\u6d4f\u89c8\u5668\u9ed8\u8ba4\u7684\u6837\u5f0f\uff0c\u6b63\u597d\u53ef\u4ee5\u5b8c\u7f8e\u89e3\u51b3\u4e0a\u9762\u6309\u94ae1\u79d2\u53d8\u4e11\u7684\u9700\u6c42\u3002<\/p>\n<p>\u517c\u5bb9\u6027\u5982\u4e0b\uff0cFirefox\u548cSafari\u6d4f\u89c8\u5668\u652f\u6301\uff0cEdge\u548cChrome\u6682\u65f6\u4e0d\u652f\u6301\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/blog\/202001\/2020-01-02_234049.png\" width=\"640\" height=\"254\" alt=\"CSS revert\u517c\u5bb9\u6027\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u5982\u679c\u7528\u5728<code>all<\/code>\u5c5e\u6027\u4e2d\uff0c\u5219\u76ee\u524d\u53ea\u6709Safari\u6d4f\u89c8\u5668\u652f\u6301\uff0c\u56e0\u6b64\uff0c\u5b9e\u9645\u9879\u76ee\u4e2d\u8fd8\u7528\u4e0d\u8d77\u6765\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/blog\/202001\/2020-01-02_234243.png\" width=\"561\" height=\"279\" alt=\"all:revert\u517c\u5bb9\u6027\" class=\"alignnone size-medium\" \/><\/p>\n<h3>\u56db\u3001\u7ed3\u675f\u8bed<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/blog\/202001\/1220551042-3.jpg\" width=\"320\" height=\"179\" alt=\"\u7ed9\u673a\u4f1a\u4e0d\u4e2d\u7528\" class=\"alignnone size-medium\" \/><\/p>\n<p>initial\u541b\uff0cunset\u6851\uff0c\u672c\u6765\u60f3\u4e13\u95e8\u5199\u7bc7\u6587\u7ae0\u597d\u597d\u5938\u5938\u4f60\u4eec\uff0c\u4f46\u662f\u4f60\u4eec\u5b9e\u5728\u662f\u4e0d\u4e89\u6c14\u554a\uff0c\u7ed9\u4f60\u4eec\u673a\u4f1a\uff0c\u4f60\u4eec\u4e5f\u4e0d\u4e2d\u7528\u554a\u3002<\/p>\n<p>\u517c\u5bb9\u6027\u53c8\u4e0d\u597d\uff0c\u6bd4\u65b9\u8bf4unset\u6851\uff1a<\/p>\n<h4>unset\u517c\u5bb9\u6027<\/h4>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/blog\/202001\/2020-01-02_230940.png\" width=\"644\" height=\"334\" alt=\"unset\u517c\u5bb9\u6027\" class=\"alignnone size-medium\" \/><\/p>\n<p>initial\u541b\u8fd8\u597d\u4e00\u70b9\uff0c\u79fb\u52a8\u7aef\u53ef\u4ee5\u653e\u5fc3\u4f7f\u7528\uff0c\u5f88\u65e9\u5c31\u652f\u6301\u4e86\uff0c\u867d\u7136IE\u8fd8\u662f\u573a\u68a6\u3002<\/p>\n<h4>initial\u517c\u5bb9\u6027<\/h4>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/blog\/202001\/2020-01-02_231159.png\" width=\"641\" height=\"372\" alt=\"initial\u517c\u5bb9\u6027\u622a\u56fe\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u540c\u65f6\u4e5f\u4e0d\u5b9e\u7528\uff0c\u5509\uff0c\u6ca1\u529e\u6cd5\uff0c\u6211\u51b3\u5b9a\u4e86\uff0c\u4f60\u4eec\u5728\u300aCSS\u65b0\u4e16\u754c\u300b\u8fd9\u672c\u4e66\u4e2d\u6d3b\u4e0d\u8fc7\u4e00\u9875\u7eb8\u4e86\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/emtion\/emoji\/1f614.svg\" width=\"20\" height=\"20\" align=\"absmiddle\"><\/p>\n<p>\u672c\u6587\u4e3a\u539f\u521b\u6587\u7ae0\uff0c\u6b22\u8fce\u5206\u4eab\uff0c\u52ff\u5168\u6587\u8f6c\u8f7d\uff0c\u5982\u679c\u5b9e\u5728\u559c\u6b22\uff0c\u53ef\u6536\u85cf\uff0c\u6c38\u4e0d\u8fc7\u671f\uff0c\u4e14\u4f1a\u53ca\u65f6\u66f4\u65b0\u77e5\u8bc6\u70b9\u53ca\u4fee\u6b63\u9519\u8bef\uff0c\u9605\u8bfb\u4f53\u9a8c\u4e5f\u66f4\u597d\u3002<br \/>\n\u672c\u6587\u5730\u5740\uff1a<a href=\"https:\/\/www.zhangxinxu.com\/wordpress\/?p=5474\">https:\/\/www.zhangxinxu.com\/wordpress\/?p=5474<\/a><\/p>\n<p>\uff08\u672c\u7bc7\u5b8c\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"<p><img decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/blog\/202001\/inital-unset.jpg\" width=\"161\" height=\"100\" class=\"alignright size-medium\" loading=\"lazy\" \/><\/p>\n<p>CSS3\u4e2a\u5168\u5c40\u5c5e\u6027\u503c<code>inherit<\/code>\u8868\u793a\u7ee7\u627f, <code>initial<\/code>\u8868\u793a\u521d\u59cb\u503c\uff0c<code>unset<\/code>\u8868\u793a\u4e0d\u786e\u5b9a\u503c\uff08\u80fd\u7ee7\u627f\u5c31\u7ee7\u627f\uff0c\u4e0d\u80fd\u5c31\u521d\u59cb\u503c\uff09\u3002\u672c\u6587\u4e3b\u8981\u4ecb\u7ecd<code>initial<\/code>\u548c<code>unset<\/code>\u4e24\u4e2aCSS\u5168\u5c40\u5173\u952e\u5b57\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[1048,422,1271,980,1050,1534,1049],"_links":{"self":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/9175"}],"collection":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/comments?post=9175"}],"version-history":[{"count":0,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/9175\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/media?parent=9175"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/categories?post=9175"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/tags?post=9175"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}