{"id":10143,"date":"2021-10-08T20:42:07","date_gmt":"2021-10-08T12:42:07","guid":{"rendered":"https:\/\/www.zhangxinxu.com\/wordpress\/?p=10143"},"modified":"2021-10-08T20:42:07","modified_gmt":"2021-10-08T12:42:07","slug":"css-content-url","status":"publish","type":"post","link":"https:\/\/www.zhangxinxu.com\/wordpress\/2021\/10\/css-content-url\/","title":{"rendered":"CSS content\u65b0\u7684\u66ff\u6362\u5143\u7d20\u89c4\u8303\u884c\u4e3a\u89e3\u8bfb"},"content":{"rendered":"<p>by <a href=\"https:\/\/www.zhangxinxu.com\/\">zhangxinxu<\/a> from <a href=\"https:\/\/www.zhangxinxu.com\/wordpress\/?p=10143\">https:\/\/www.zhangxinxu.com\/wordpress\/?p=10143<\/a> \u946b\u7a7a\u95f4-\u946b\u751f\u6d3b<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\/202110-content.png';if(!\/zhangxinxu\/.test(location.host)){document.body.addEventListener('mousedown',function(){location.href='https:\/\/www.zhangxinxu.com\/wordpress\/?p=10143'});}<\/script><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202110\/css-content-cover.png\" width=\"480\" height=\"313\" alt=\"CSS content\u5360\u4f4d\u56fe\" class=\"alignright clip thumb size-medium\" \/><\/p>\n<h3>\u4e00\u3001\u666e\u901a\u5143\u7d20\u80fd\u5426\u53d8\u6210\u66ff\u6362\u5143\u7d20<\/h3>\n<p>\u6211\u4eec\u901a\u5e38\u6240\u8bf4\u7684\u66ff\u6362\u5143\u7d20\u6307\u7684\u662f\u56fe\u7247\u3001\u89c6\u9891\u7b49\u5143\u7d20\uff0c\u5bf9\u5e94\u7684 HTML \u6807\u7b7e\u662f <code>&lt;img&gt;<\/code> \u548c <code>&lt;video&gt;<\/code>\u3001\u800c\u5e73\u5e38\u7528\u6765\u5e03\u5c40\u7684 <code>&lt;div&gt;<\/code>\u3001<code>&lt;p&gt;<\/code>\u3001<code>&lt;span&gt;<\/code> \u7b49\u5143\u7d20\u90fd\u662f\u975e\u66ff\u6362\u5143\u7d20\u3002<\/p>\n<p>\u5b9e\u9645\u4e0a\uff0c\u4ece2019\u5e74\u5f80\u540e\uff0c\u4e0a\u9762\u8fd9\u6761\u89c4\u5219\u5df2\u7ecf\u53d8\u5f97\u4e0d\u51c6\u786e\u7684\uff0c\u6216\u8005\u8bf4\u662f\u5728\u7ea6\u675f\u6761\u4ef6\u4e0b\u624d\u80fd\u6210\u7acb\u7684\u89c4\u5219\u3002<\/p>\n<p>\u6362\u53e5\u8bdd\u8bf4\uff0c<code>&lt;div&gt;<\/code>\u3001<code>&lt;span&gt;<\/code> \u7b49\u5143\u7d20\u5728\u67d0\u4e9b\u6761\u4ef6\u4e0b\u4e5f\u662f\u53ef\u4ee5\u8f6c\u53d8\u6210\u66ff\u6362\u5143\u7d20\u7684\uff0c\u8fd9\u4e2a\u8f6c\u53d8\u7684\u6761\u4ef6\u5c31\u662f <code>content<\/code> \u5c5e\u6027\u7684 <code>url()<\/code> \u51fd\u6570\u8bed\u6cd5\u3002<\/p>\n<h3>\u4e8c\u3001content \u4e0e\u66ff\u6362\u5143\u7d20<\/h3>\n<p>\u6240\u8c13\u201c\u66ff\u6362\u5143\u7d20\u201d\u6307\u7684\u5c31\u662f\u5185\u5bb9\u53ef\u66ff\u6362\uff0c\u800c <code>content<\/code> \u5c5e\u6027\u662f\u53ef\u4ee5\u76f4\u63a5\u66ff\u6362 HTML \u4e2d\u7684\u5185\u5bb9\u7684\uff0c\u56e0\u6b64\uff0c\u53ef\u4ee5\u8ba9 <code>content<\/code> \u5c5e\u6027\u751f\u6548\u7684\u573a\u666f\uff0c\u6211\u4eec\u90fd\u53ef\u4ee5\u79f0\u4e3a\u66ff\u6362\u5143\u7d20\u3002<\/p>\n<p>\u5982\u679c\u662f\u5728 <code>::before<\/code>\/<code>::after<\/code> \u4f2a\u5143\u7d20\u4e2d\u751f\u6548\uff0c\u90a3\u4e48\u6b64\u65f6\u8fd9\u4e2a\u4f2a\u5143\u7d20\u88ab\u79f0\u4e4b\u4e3a \u201c\u533f\u540d\u66ff\u6362\u5143\u7d20\u201d\u3002<\/p>\n<pre>.some::before {\r\n    content: url(1.jpg);    \r\n}<\/pre>\n<p>\u5728 CSS \u8bed\u7cfb\u4e2d\uff0c\u6ca1\u6709\u660e\u786e\u7684 HTML \u6807\u7b7e\u7684\u4e1c\u897f\u79f0\u4e4b\u4e3a\u201c\u533f\u540d\u201d\uff0c\u4f8b\u5982\u4e0b\u9762\u8fd9\u6bb5 HTML\uff1a<\/p>\n<pre>&lt;p&gt;\u6211\u662f&lt;span&gt;\u946b\u65ed&lt;\/span&gt;<\/pre>\n<p>\u5176\u4e2d\uff0c\u201c\u6211\u662f\u201d\u7684\u5c31\u662f\u533f\u540d\u5185\u8054\u76d2\u5b50\uff0c\u800c\u201c\u946b\u65ed\u201d\u662f\u5185\u8054\u76d2\u5b50\uff0c\u56e0\u4e3a\u5916\u90e8\u6709\u660e\u786e\u7684 <code>&lt;span&gt;<\/code> \u6807\u7b7e\u3002<\/p>\n<p>\u5728\u4f2a\u5143\u7d20\u8fd9\u91cc\u4e5f\u662f\u7c7b\u4f3c\u7684\uff0c<code>::before<\/code>\/<code>::after<\/code> \u521b\u5efa\u7684\u5185\u5bb9\u5916\u90e8\u662f\u6ca1\u6709\u660e\u786e\u7684\u6807\u7b7e\u7684\uff0c\u56e0\u6b64\uff0c\u88ab\u79f0\u4e3a \u201c\u533f\u540d\u66ff\u6362\u5143\u7d20\u201d\u3002<\/p>\n<p>\u65e2\u7136 <code>content<\/code> \u5c5e\u6027\u6709\u201c\u533f\u540d\u66ff\u6362\u5143\u7d20\u201d\uff0c\u90a3 <code>content<\/code> \u5c5e\u6027\u6709\u6ca1\u6709\u201c\u66ff\u6362\u5143\u7d20\u201d\u5462\uff1f\u4e24\u8005\u7684\u533a\u522b\u53c8\u662f\u5728\u54ea\u91cc\u5462\uff1f<\/p>\n<p>\u9996\u5148\u7b2c\u4e00\u4e2a\u95ee\u9898\u7684\u56de\u7b54\u662f \u201c\u6709\uff01\u201d<\/p>\n<h4>content \u65b0\u7684\u89c4\u8303\u7279\u6027<\/h4>\n<p>\u8fd9\u4e2a\u65b0\u7684\u89c4\u8303\u7279\u6027\u5c31\u662f\uff0c\u5373\u4f7f\u4e0d\u501f\u52a9\u4f2a\u5143\u7d20\uff0c<code>content<\/code> \u5c5e\u6027\u4e5f\u80fd\u5bf9\u5185\u5bb9\u8fdb\u884c\u66ff\u6362\uff01<\/p>\n<p>\u5176\u5386\u53f2\u53d1\u5c55\u8fdb\u7a0b\u662f\u8fd9\u6837\u7684\uff1a<\/p>\n<ol>\n<li>\u6ca1\u6709\u4efb\u4f55\u6d4f\u89c8\u5668\u652f\u6301\u5728\u975e\u4f2a\u5143\u7d20\u4e2d\u4f7f\u7528 <code>content<\/code> \u5c5e\u6027\uff1b<\/li>\n<li>\u5927\u698217\u5e74\u8fd8\u662f18\u5e74\u7684\u65f6\u5019\uff0cChrome \u6d4f\u89c8\u5668\u7387\u5148\u652f\u6301\u666e\u901a\u5143\u7d20\u76f4\u63a5\u8bbe\u7f6e <code>content<\/code> \u5c5e\u6027\uff1b<\/li>\n<li><a href=\"https:\/\/www.w3.org\/TR\/css-content-3\/\" target=\"_blank\" rel=\"nofollow noopener\">19 \u5e74 content \u89c4\u8303<\/a>\u8fdb\u884c\u4e86\u660e\u786e\uff0cFirefox \u548c Safari \u6d4f\u89c8\u5668\u4e5f\u8ddf\u8fdb\u4e86\u652f\u6301\u3002<\/li>\n<\/ol>\n<p>\u56e0\u6b64\uff0c\u76ee\u524d\u7684\u72b6\u51b5\u662f\uff0c\u6240\u6709\u73b0\u4ee3\u6d4f\u89c8\u5668\u5747\u652f\u6301 <code>content<\/code> \u5c5e\u6027\u66ff\u6362\u5185\u5bb9\uff0c\u4e0d\u8fc7\uff0c\u4ec5\u652f\u6301 <code>url()<\/code> \u8d44\u6e90\u66ff\u6362\uff0c\u5e76\u4e0d\u652f\u6301\u5b57\u7b26\u5185\u5bb9\u7684\u66ff\u6362\u3002<\/p>\n<p>\u4e3e\u4e2a\u4f8b\u5b50\uff0c\u4e0b\u9762\u662f\u4e2a logo \u6240\u5728\u7684 HTML\uff1a<\/p>\n<pre>&lt;h1&gt;\u946b\u7a7a\u95f4-\u946b\u751f\u6d3b&lt;\/h1&gt;<\/pre>\n<p>\u5728\u8fc7\u53bb\uff0c\u6211\u4eec\u7684\u505a\u6cd5\u662f\u8bbe\u7f6e\u5b57\u53f7\u4e3a 0 \u6216\u8005\u6587\u5b57\u900f\u660e\uff0c\u7136\u540e logo \u4f5c\u4e3a\u80cc\u666f\u56fe\u663e\u793a\uff0c\u73b0\u5728\uff0c\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528 <code>content<\/code> \u5c5e\u6027\u4e00\u6b21\u6027\u89e3\u51b3\uff1a<\/p>\n<pre>h1 {\r\n    content: url(logo.png);    \r\n}<\/pre>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202110\/2021-10-08_142948.png\" width=\"662\" height=\"244\" alt=\"url()\u66ff\u6362\u5143\u7d20\u751f\u6548\u793a\u610f\"><\/p>\n<p>\u6b64\u65f6\u65e0\u8bba\u662f\u8f85\u52a9\u8bbe\u5907\u8bc6\u522b\u8fd8\u662f\u641c\u7d22\u5f15\u64ce\uff0c\u90fd\u80fd\u83b7\u5f97\u51c6\u786e\u7684\u6587\u5b57\u5185\u5bb9\uff0c\u800c\u5bf9\u4e8e\u6b63\u5e38\u7528\u6237\uff0c\u770b\u5230\u7684\u8fd8\u662f logo \u56fe\u50cf\uff0c\u517c\u987e\u4e86\u89c6\u89c9\u4e0e\u529f\u80fd\u3002<\/p>\n<p>\u6b64\u65f6\u7684 <code>&lt;h1&gt;<\/code> \u5c31\u662f\u4e00\u4e2a\u66ff\u6362\u5143\u7d20\uff0c\u672c\u8d28\u4e0a\u548c <code>&lt;img&gt;<\/code> \u5143\u7d20\u5e76\u65e0\u533a\u522b\u3002<\/p>\n<h4>\u548c\u533f\u540d\u66ff\u6362\u5143\u7d20\u533a\u522b<\/h4>\n<p>\u7531\u4e8e\u533f\u540d\u66ff\u6362\u5143\u7d20\u7f3a\u5c11\u660e\u786e\u7684\u6807\u7b7e\uff0c\u56e0\u6b64\uff0c\u56fe\u50cf\u7684\u5916\u90e8\u5c3a\u5bf8\u662f\u65e0\u6cd5\u8fdb\u884c\u8c03\u6574\u7684\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>h1::before {\r\n    width: 100px; height: 100px;\r\n    content: url(logo.png);    \r\n}<\/pre>\n<p>\u4e0a\u9762\u7684 CSS \u4e2d\u7684 <code>width:100px<\/code> \u548c <code>height:100px;<\/code> \u90fd\u662f\u65e0\u6cd5\u6539\u53d8 <code>logo.png<\/code> \u8fd9\u4e2a\u56fe\u50cf\u7684\u5c3a\u5bf8\u7684\uff0c\u56e0\u4e3a\u4ed6\u662f\u201c\u533f\u540d\u201d\u7684\uff0c\u8fd9\u5c31\u597d\u50cf\u4e00\u4e2a\u6ca1\u6709\u86cb\u58f3\u7684\u9e21\u86cb\uff0c\u4f60\u65e0\u6cd5\u901a\u8fc7\u6539\u53d8\u86cb\u58f3\u5927\u5c0f\uff0c\u4ece\u800c\u5f71\u54cd\u5185\u90e8\u86cb\u767d\u548c\u6de1\u9ec4\u7684\u5f62\u72b6\u548c\u5c3a\u5bf8\u3002<\/p>\n<p>\u4f46\u662f\u66ff\u6362\u5143\u7d20\u4e0d\u540c\uff0c\u7531\u4e8e\u6709\u663e\u5f0f\u7684\u6807\u7b7e\u5143\u7d20\uff0c\u56e0\u6b64\uff0c\u53ef\u4ee5\u4f5c\u4e3a\u66ff\u6362\u5143\u7d20\u7684\u5916\u90e8\u5c3a\u5bf8\u8fdb\u884c\u8bbe\u7f6e\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>h1 {\r\n    width: 100px; height: 100px;\r\n    content: url(logo.png);    \r\n}<\/pre>\n<p>\u6b64\u65f6 <code>logo.png<\/code> \u56fe\u50cf\u7684\u5c3a\u5bf8\u5c31\u662f 100px * 100px\u3002<\/p>\n<p><span class=\"hidden\">\/\/zxx: \u5982\u679c\u4f60\u770b\u5230\u8fd9\u6bb5\u6587\u5b57\uff0c\u8bf4\u660e\u4f60\u73b0\u5728\u8bbf\u95ee\u662f\u4e0d\u662f\u539f\u6587\u7ad9\u70b9\uff0c\u66f4\u597d\u7684\u9605\u8bfb\u4f53\u9a8c\u5728\u8fd9\u91cc\uff1ahttps:\/\/www.zhangxinxu.com\/wordpress\/?p=10143\uff08\u4f5c\u8005\u5f20\u946b\u65ed\uff09<\/span><\/p>\n<h3>\u4e09\u3001content \u65b0\u7279\u6027\u89e3\u8bfb<\/h3>\n<p>\u6240\u6709\u73b0\u4ee3\u6d4f\u89c8\u5668\u5747\u652f\u6301\u5728\u4efb\u610f HTML \u5143\u7d20\u4e2d\u4f7f\u7528 <code>content<\/code> <code>url()<\/code> \u51fd\u6570\u8bed\u6cd5\uff0c\u4e14\u4e00\u65e6\u4f7f\u7528\uff0c\u8be5\u5143\u7d20\u5c31\u4f1a\u53d8\u6210\u66ff\u6362\u5143\u7d20\u3002<\/p>\n<p>\u539f\u56e0\u5728\u4e8e\uff1a<\/p>\n<ol>\n<li>\u4ece\u884c\u4e3a\u4e0a\u8bb2\uff0c\u539f\u672c\u7684\u5185\u5bb9\u5168\u90e8\u88ab\u66ff\u6362\u6210\u4e86\u56fe\u50cf\uff0c\u662f\u5178\u578b\u7684\u66ff\u6362\u5143\u7d20\u3002<\/li>\n<li>\u4ece\u6837\u5f0f\u8868\u73b0\u4e0a\u5c06\uff0c\u548c <code>&lt;img&gt;<\/code> \u5143\u7d20\u5e76\u65e0\u4e8c\u6837\u3002<\/li>\n<\/ol>\n<h4>\u548c <code>&lt;img&gt;<\/code> \u5143\u7d20\u5e76\u65e0\u533a\u522b<\/h4>\n<p>\u4f8b\u5982\uff0c<code>&lt;img&gt;<\/code> \u5143\u7d20\u901a\u8fc7\u8bbe\u7f6e\u5bbd\u9ad8\u53ef\u4ee5\u62c9\u4f38\u56fe\u7247\u7684\u5c3a\u5bf8\uff0c\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d <code>&lt;h1&gt;<\/code> \u5143\u7d20\u4e5f\u6709\u7c7b\u578b\u7684\u884c\u4e3a\u3002<\/p>\n<p>\u53c8\u4f8b\u5982\uff0c<code>&lt;img&gt;<\/code> \u5143\u7d20\u901a\u8fc7\u8bbe\u7f6e <code>object-fit<\/code> \u5c5e\u6027\u63a7\u5236\u56fe\u50cf\u7684\u5982\u4f55\u9002\u5e94\u663e\u793a\uff0c<code>&lt;h1&gt;<\/code> \u5143\u7d20\u4e5f\u6709\u4e00\u6837\u7684\u884c\u4e3a\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>h1 {\r\n    width: 100px; height: 100px;\r\n    content: url(logo.png);\r\n    object-fit: contain;\r\n}<\/pre>\n<p>\u5c31\u662f\u4e0b\u56fe\u6240\u793a\u7684\u6548\u679c\uff0clogo \u56fe\u50cf\u5728\u4fdd\u6301\u6bd4\u4f8b\u7684\u540c\u65f6\uff0c\u663e\u793a\u5728\u4e86 100px * 100px \u7684\u533a\u57df\u5185\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202110\/2021-10-08_151659.png\" width=\"613\" height=\"246\" alt=\"object-fit\u4f5c\u7528\u4e8e\u975e\u56fe\u50cf\u5143\u7d20\"><\/p>\n<h3>\u56db\u3001\u53cd\u4e4b\u4e5f\u6210\u7acb<\/h3>\n<p>\u6240\u8c13\u53cd\u4e4b\u4e5f\u6210\u7acb\uff0c\u6307\u7684\u662f\uff0c\u5982\u679c\u539f\u672c\u4e00\u4e2a\u5143\u7d20\u662f\u66ff\u6362\u5143\u7d20\uff0c\u90a3\u4e48\u5982\u679c\u6211\u4eec\u8bbe\u7f6e <code>content:''<\/code> \u8fdb\u884c\u91cd\u7f6e\uff0c\u5219\u8fd9\u4e2a\u5143\u7d20\u4f1a\u88ab\u8fd8\u539f\u6210\u975e\u66ff\u6362\u5143\u7d20\u3002<\/p>\n<p>\u6b64\u65f6\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u4f7f\u7528 <code>::before<\/code> \/ <code>::after<\/code> \u4f2a\u5143\u7d20\u5b9e\u73b0\u4e00\u4e9b\u529f\u80fd\u3002<\/p>\n<p>\u4f8b\u5982\uff0c2020\u5e74\u6700\u70ed\u95e8\u7684\u201c<a href=\"https:\/\/www.zhangxinxu.com\/wordpress\/?p=9618\">\u56fe\u7247\u52a0\u8f7d\u5931\u8d25\u540eCSS\u6837\u5f0f\u5904\u7406\u6700\u4f73\u5b9e\u8df5<\/a>\u201d\u8fd9\u7bc7\u6587\u7ae0\u63d0\u5230\u7684\u6280\u672f\u5b9e\u73b0\uff0c\u5c31\u662f\u5229\u7528\u8fd9\u4e00\u7279\u6027\uff1a<\/p>\n<pre>&lt;img src=\"zxx.png\" alt=\"CSS\u65b0\u4e16\u754c\u5c01\u9762\" onerror=\"this.classList.add('error');\"&gt;<\/pre>\n<pre>img.error {\r\n  display: inline-block;\r\n  transform: scale(1);\r\n  content: '';\r\n  color: transparent;\r\n}\r\nimg.error::before {\r\n  content: '';\r\n  position: absolute;\r\n  left: 0; top: 0;\r\n  width: 100%; height: 100%;\r\n  background: #f5f5f5 url(break.svg) no-repeat center \/ 50% 50%;\r\n}\r\nimg.error::after {\r\n  content: attr(alt);\r\n  \/\/... \u7565\r\n}<\/pre>\n<p>\u6b64\u65f6\uff0c\u51fa\u9519\u7684\u56fe\u7247\u4e0d\u4ec5\u663e\u793a\u4e86\u88c2\u5f00\u7684\u56fe\u50cf\uff0c\u540c\u65f6\u8fd8\u663e\u793a\u4e86 <code>alt<\/code> \u4fe1\u606f\uff0c\u8ba9\u7528\u6237\u77e5\u9053\u8fd9\u5f20\u56fe\u7247\u6240\u4ee3\u8868\u7684\u542b\u4e49\u662f\u4ec0\u4e48\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202010\/2020-10-24_192441.png\" width=\"476\" height=\"231\" alt=\"\u56fe\u50cf\u5931\u8d25\u548calt\u4fe1\u606f\u540c\u65f6\u51fa\u73b0\" class=\"alignnone size-medium\"><\/p>\n<h3>\u4e94\u3001\u5b9e\u9645\u5f00\u53d1\u4e2d\u7684\u5e94\u7528<\/h3>\n<p>\u4f7f\u7528 <code>content<\/code> \u5c5e\u6027\u663e\u793a\u56fe\u50cf\u5728\u65e5\u5e38\u5f00\u53d1\u4e2d\u5e76\u4e0d\u5e38\u7528\uff0c\u5982\u679c\u662f\u666e\u901a\u7684\u56fe\u50cf\u663e\u793a\uff0c\u4f60\u5c31\u4f7f\u7528 <code>&lt;img&gt;<\/code> \u5143\u7d20\uff0c\u5982\u679c\u662f\u88c5\u9970\u6027\u7684\u56fe\u50cf\u663e\u793a\uff0c\u4f60\u5c31\u4f7f\u7528 <code>background-image<\/code> \u5c5e\u6027\u3002<\/p>\n<p>\u53ea\u6709\u4ec0\u4e48\u65f6\u5019\u9700\u8981\u4f7f\u7528 <code>content<\/code> \u5c5e\u6027\u5462\uff1f<\/p>\n<p>\u5c31\u662f\u5e0c\u671b\u6e90\u4ee3\u7801\u5c42\u9762\u8fd8\u662f\u539f\u6765\u7684 HTML \u5185\u5bb9\u7ed3\u6784\uff0c\u4f46\u662f\u89c6\u89c9\u8868\u73b0\u4e0a\u4f9d\u7136\u662f\u56fe\u50cf\u3002<\/p>\n<p>\u6bd4\u65b9\u8bf4\u4e00\u5f00\u59cb\u63d0\u5230\u7684logo\u663e\u793a\uff0c\u53c8\u6bd4\u5982\u60f3\u8981\u5728\u4e0d\u6539\u53d8 HTML \u7ed3\u6784\u7684\u524d\u63d0\u4e0b\uff0c\u6e05\u7a7a\uff08\u6216\u9690\u85cf\uff09\u4e00\u5927\u6bb5\u5185\u5bb9\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528\uff1a<\/p>\n<pre>.container {\r\n    content: url();    \r\n}<\/pre>\n<p>\u4e0d\u5360\u636e\u4efb\u4f55\u7a7a\u95f4\uff0c\u540c\u65f6\u4f9d\u7136\u53ef\u4ee5\u54cd\u5e94\u70b9\u51fb\u884c\u4e3a\uff0c\u80fd\u591f\u88ab\u5c4f\u5e55\u9605\u8bfb\u5668\u7b49\u8bbe\u5907\u8bc6\u522b\u3002<\/p>\n<p>\u597d\uff0c\u4ee5\u4e0a\u5c31\u662f\u672c\u6587\u7684\u5168\u90e8\u5185\u5bb9\uff0c\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u4e0b <code>content<\/code> \u5c5e\u6027\u65b0\u7684\u884c\u4e3a\u8868\u73b0\u3002<\/p>\n<p>\u5982\u679c\u672c\u6587\u7684\u5185\u5bb9\u5bf9\u60a8\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff0c\u6b22\u8fce\u8f6c\u53d1\uff0c\u6b22\u8fce\u5206\u4eab\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/emtion\/emoji\/2764.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=10143\">https:\/\/www.zhangxinxu.com\/wordpress\/?p=10143<\/a><\/p>\n<p>\uff08\u672c\u7bc7\u5b8c\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202110\/css-content-cover.png\" width=\"160\" height=\"104\" alt=\"CSS content\u5360\u4f4d\u56fe\" class=\"alignright size-medium\" loading=\"lazy\" \/><\/p>\n<p>CSS\u6084\u7136\u53d1\u5c55\uff0c\u5df2\u6709CSS\u884c\u4e3a\u4e5f\u8ddf\u7740\u53d1\u751f\u4e86\u53d8\u5316\uff0ccontent\u5c5e\u6027\u5c31\u662f\u5176\u4e00\uff0c\u73b0\u5728\u6240\u6709\u73b0\u4ee3\u6d4f\u89c8\u5668\u90fd\u652f\u6301\u666e\u901aHTML\u5143\u7d20\u901a\u8fc7content\u5c5e\u6027\u6539\u53d8\u5143\u7d20\u5185\u5bb9\uff0c\u80cc\u540e\u7684\u539f\u7406\u548c\u673a\u5236\u662f\u4ec0\u4e48\u5462\uff1f<\/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":[365,1271,823,1786],"_links":{"self":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/10143"}],"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=10143"}],"version-history":[{"count":0,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/10143\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/media?parent=10143"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/categories?post=10143"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/tags?post=10143"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}