{"id":2949,"date":"2020-05-18T08:25:25","date_gmt":"2020-05-18T00:25:25","guid":{"rendered":"http:\/\/www.yuguoxy.com\/geekhome\/?p=2949"},"modified":"2020-05-18T08:25:25","modified_gmt":"2020-05-18T00:25:25","slug":"%e6%94%b9%e5%96%84css%e7%9a%8410%e7%a7%8d%e6%9c%80%e4%bd%b3%e5%81%9a%e6%b3%95","status":"publish","type":"post","link":"https:\/\/ai.zhousir.top\/?p=2949","title":{"rendered":"\u6539\u5584CSS\u768410\u79cd\u6700\u4f73\u505a\u6cd5"},"content":{"rendered":"<p>\u82f1\u6587 | <a class=\"url\" href=\"https:\/\/medium.com\/better-programming\/10-best-practices-for-improving-your-css-84c69aac66e\" target=\"_blank\">https:\/\/medium.com\/better-programming\/10-best-practices-for-improving-your-css-84c69aac66e<\/a><\/p>\n<p>&nbsp;<\/p>\n<p>CSS\u4f3c\u4e4e\u662f\u4e00\u79cd\u975e\u5e38\u7b80\u5355\u7684\u8bed\u8a00\uff0c\u5f88\u96be\u5728\u5176\u4e2d\u72af\u9519\u8bef\u3002\u4f60\u53ea\u9700\u6dfb\u52a0\u6837\u5f0f\u89c4\u5219\uff0c\u5c31\u53ef\u4ee5\u5bf9\u7f51\u7ad9\u8fdb\u884c\u6837\u5f0f\u8bbe\u7f6e\u4e86\uff0c\u5bf9\u5417\uff1f\u5bf9\u4e8e\u53ea\u9700\u8981\u51e0\u4e2aCSS\u6587\u4ef6\u7684\u5c0f\u578b\u7f51\u7ad9\uff0c\u60c5\u51b5\u53ef\u80fd\u5c31\u662f\u8fd9\u6837\u3002\u4f46\u662f\u5728\u5927\u578b\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u6837\u5f0f\u53ef\u80fd\u4f1a\u8fc5\u901f\u5931\u63a7\u3002\u4f60\u5982\u4f55\u4f7f\u5b83\u4eec\u6613\u4e8e\u7ba1\u7406\uff1f<\/p>\n<p>\u4e8b\u5b9e\u662f\uff0c\u5c31\u50cf\u5176\u4ed6\u4efb\u4f55\u8bed\u8a00\u4e00\u6837\uff0cCSS\u53ef\u80fd\u4f1a\u5f71\u54cd\u6216\u7834\u574f\u4f60\u7684\u8bbe\u8ba1\u3002\u8fd9\u662fCSS\u768410\u6761\u6700\u4f73\u5b9e\u8df5\u6280\u5de7\uff0c\u53ef\u4ee5\u5e2e\u52a9\u4f60\u4ece\u6837\u5f0f\u4e2d\u83b7\u5f97\u6700\u5927\u7684\u6536\u76ca\u3002<\/p>\n<h1><strong>1.\u4f60\u771f\u7684\u9700\u8981\u4e00\u4e2a\u6846\u67b6\u5417\uff1f<\/strong><\/h1>\n<p>\u9996\u5148\uff0c\u786e\u5b9a\u4f60\u662f\u5426\u771f\u7684\u9700\u8981\u4f7f\u7528CSS\u6846\u67b6\u3002\u73b0\u5728\uff0c\u6709\u8bb8\u591a\u8f7b\u91cf\u7ea7\u7684\u66ff\u4ee3\u5065\u58ee\u6846\u67b6\u3002\u901a\u5e38\uff0c\u4f60\u4e0d\u4f1a\u4f7f\u7528\u6846\u67b6\u4e2d\u7684\u6bcf\u4e2a\u9009\u62e9\u5668\uff0c\u56e0\u6b64\u4f60\u7684\u8f6f\u4ef6\u5305\u5c06\u5305\u542b\u65e0\u6548\u4ee3\u7801\u3002<\/p>\n<p>\u5982\u679c\u4ec5\u5bf9\u6309\u94ae\u6837\u5f0f\u4f7f\u7528\uff0c\u5219\u5c06\u6837\u5f0f\u5916\u5305\u7ed9\u4f60\u7684CSS\u6587\u4ef6\uff0c\u7136\u540e\u5220\u9664\u5176\u4f59\u6837\u5f0f\u3002\u53e6\u5916\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528DevTools\u4e2d\u7684\u4ee3\u7801\u8986\u76d6\u7387\u6765\u8bc6\u522b\u672a\u4f7f\u7528\u7684CSS\u89c4\u5219\u3002<\/p>\n<p><a href=\"https:\/\/ai.zhousir.top\/wp-content\/uploads\/2020\/05\/image-20200518081713408.png\" rel=\"fancybox\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-2951\" src=\"https:\/\/ai.zhousir.top\/wp-content\/uploads\/2020\/05\/image-20200518081713408.png\" alt=\"image-20200518081713408\" width=\"667\" height=\"501\" \/><\/a><\/p>\n<p>\u8981\u6253\u5f00\u5b83\uff0c\u8bf7\u5728\u201c\u5de5\u5177\u201d\u9762\u677f\u4e2d\u641c\u7d22Coverage\u3002\u4f60\u4e5f\u53ef\u4ee5\u901a\u8fc7\u5355\u51fbCtrl+ Shift+ \u6253\u5f00\u201c\u5de5\u5177\u201d\u9762\u677fP\u3002\u6253\u5f00\u540e\uff0c\u5355\u51fb\u91cd\u65b0\u52a0\u8f7d\u56fe\u6807\u5f00\u59cb\u5f55\u5236\u3002\u7ea2\u8272\u663e\u793a\u7684\u6240\u6709\u5185\u5bb9\u5747\u672a\u4f7f\u7528\u3002<\/p>\n<p>\u4f60\u53ef\u4ee5\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\u770b\u5230\uff0c\u5b83\u8bf4\u6ca1\u6709\u4f7f\u752898\uff05\u7684CSS\u3002\u8bf7\u6ce8\u610f\uff0c\u5b9e\u9645\u4e0a\u5e76\u975e\u5982\u6b64\uff0c\u67d0\u4e9bCSS\u6837\u5f0f\u4ec5\u5728\u7528\u6237\u4e0e\u7f51\u7ad9\u4e92\u52a8\u540e\u624d\u5e94\u7528\u3002\u79fb\u52a8\u8bbe\u5907\u7684\u6837\u5f0f\u4e5f\u6807\u8bb0\u4e3a\u672a\u4f7f\u7528\u7684\u5b57\u8282\u3002\u56e0\u6b64\uff0c\u5728\u5220\u9664\u6240\u6709\u5185\u5bb9\u4e4b\u524d\uff0c\u8bf7\u786e\u4fdd\u786e\u8ba4\u786e\u5b9e\u6ca1\u6709\u5728\u4efb\u4f55\u5730\u65b9\u4f7f\u7528\u5b83\u3002<\/p>\n<h1><strong>2\u3001\u9996\u9009\u4f7f\u7528CSS\u65b9\u6cd5<\/strong><\/h1>\n<p>\u8003\u8651\u4e3a\u4f60\u7684\u9879\u76ee\u4f7f\u7528CSS\u65b9\u6cd5\u3002CSS\u65b9\u6cd5\u7528\u4e8e\u5728CSS\u6587\u4ef6\u4e2d\u521b\u5efa\u4e00\u81f4\u6027\u3002\u5b83\u4eec\u6709\u52a9\u4e8e\u6269\u5c55\u548c\u7ef4\u62a4\u4f60\u7684\u9879\u76ee\u3002\u8fd9\u662f\u6211\u53ef\u4ee5\u63a8\u8350\u7684\u4e00\u4e9b\u6d41\u884c\u7684CSS\u65b9\u6cd5\u3002<\/p>\n<p><strong>BEM<\/strong><\/p>\n<p>BEM\uff08\u5757\uff0c\u5143\u7d20\uff0c\u4fee\u9970\u7b26\uff09\u662f\u6700\u6d41\u884c\u7684CSS\u65b9\u6cd5\u4e4b\u4e00\u3002\u5b83\u662f\u547d\u540d\u7ea6\u5b9a\u7684\u96c6\u5408\uff0c\u53ef\u7528\u4e8e\u8f7b\u677e\u5236\u4f5c\u53ef\u91cd\u590d\u4f7f\u7528\u7684\u7ec4\u4ef6\u3002\u547d\u540d\u7ea6\u5b9a\u9075\u5faa\u4ee5\u4e0b\u6a21\u5f0f\uff1a<\/p>\n<pre><code>.block { ... }.block__element { ... }.block--modifier { ... }\r\n<\/code><\/pre>\n<ul>\n<li>.block\uff1a\u5757\u4ee3\u8868\u4e00\u4e2a\u7ec4\u4ef6\u3002\u5b83\u4eec\u662f\u72ec\u7acb\u7684\u5b9e\u4f53\uff0c\u5e76\u4e14\u5bf9\u81ea\u5df1\u6709\u610f\u4e49\u3002<\/li>\n<li>.block__element\uff1a\u8fd9\u4e9b\u662f\u7684\u4e00\u90e8\u5206.block\u3002\u5b83\u4eec\u6ca1\u6709\u72ec\u7acb\u7684\u542b\u4e49\uff0c\u5fc5\u987b\u7ed1\u5b9a\u5230\u4e00\u4e2a\u5757\u4e0a\u3002<\/li>\n<li>.block&#8211;modifier\uff1a\u8fd9\u4e9b\u7528\u4f5c\u5757\u6216\u5143\u7d20\u4e0a\u7684\u6807\u5fd7\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u5b83\u4eec\u6765\u66f4\u6539\u5143\u7d20\u7684\u5916\u89c2\uff0c\u884c\u4e3a\u6216\u72b6\u6001\u3002\u4f8b\u5982\uff0c\u8981\u4f7f\u7528\u9690\u85cf\u6807\u8bb0\uff0c\u6211\u4eec\u53ef\u4ee5\u8bf4.block&#8211;hidden\u3002<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2><strong>ITCSS<\/strong><\/h2>\n<p>\u5012\u4e09\u89d2CSS\u901a\u8fc7\u5c06\u4e0d\u540c\u7684\u56fe\u5c42\u5f15\u5165\u4e0d\u540c\u7684\u7279\u6027\u6765\u5e2e\u52a9\u4f60\u66f4\u597d\u5730\u7ec4\u7ec7\u6587\u4ef6\u3002\u4f60\u8d70\u5f97\u8d8a\u6df1\uff0c\u5c31\u8d8a\u5177\u4f53\u3002<\/p>\n<p><a href=\"https:\/\/ai.zhousir.top\/wp-content\/uploads\/2020\/05\/image-20200518081733107.png\" rel=\"fancybox\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-2952\" src=\"https:\/\/ai.zhousir.top\/wp-content\/uploads\/2020\/05\/image-20200518081733107.png\" alt=\"image-20200518081733107\" width=\"822\" height=\"450\" \/><\/a><\/p>\n<h2><strong>OOCSS<\/strong><\/h2>\n<p>\u9762\u5411\u5bf9\u8c61\u7684CSS\u6216OOCSS\u5177\u6709\u4e24\u4e2a\u4e3b\u8981\u539f\u7406\u3002<\/p>\n<p><strong>\u5206\u79bb\u7ed3\u6784\u548c\u76ae\u80a4<\/strong><br \/>\n\u8fd9\u610f\u5473\u7740\u4f60\u8981\u4e0e\u7ed3\u6784\u4ee3\u7801\u5206\u5f00\u5b9a\u4e49\u89c6\u89c9\u6548\u679c\u3002\u5b9e\u9645\u4e0a\u8fd9\u662f\u4ec0\u4e48\u610f\u601d\uff1f<\/p>\n<p>&nbsp;<\/p>\n<pre><code class=\"language-css\" lang=\"css\">\/* Instead of  *\/\r\n.box {   \r\n    width: 250px;    \r\n    height: 250px;    \r\n    padding: 10px;    \r\n    border: 1px solid #CCC;    \r\n    box-shadow: 1px 2px 5px #CCC;    \r\n    border-radius: 5px;\r\n}\r\n\/* Do *\/\r\n.box {    \r\n    width: 250px;    \r\n    height: 250px;    \r\n    padding: 10px;\r\n}\r\n.elevated {    \r\n    border: 1px solid #CCC;    \r\n    box-shadow: 1px 2px 5px #CCC;    \r\n    border-radius: 5px;\r\n}\r\n<\/code><\/pre>\n<p><strong>2\u3001\u5206\u9694\u5bb9\u5668\u548c\u5185\u5bb9<\/strong><br \/>\n\u8fd9\u610f\u5473\u7740\u4f60\u4e0d\u5e0c\u671b\u4efb\u4f55\u5143\u7d20\u53d6\u51b3\u4e8e\u5176\u4f4d\u7f6e\u3002\u76f8\u540c\u7684\u5143\u7d20\u65e0\u8bba\u5728\u9875\u9762\u4e0a\u7684\u4ec0\u4e48\u4f4d\u7f6e\uff0c\u90fd\u5e94\u770b\u8d77\u6765\u76f8\u540c\u3002<\/p>\n<pre><code>\/* Instead *\/\r\n.main span.breadcumb { ... }\r\n\/* Do *\/\r\n.breadcrumb { ... }\r\n<\/code><\/pre>\n<h1><strong>3\u3001\u8bbe\u7f6e\u9884\u5904\u7406\u5668<\/strong><\/h1>\n<p>\u8bbe\u7f6e\u9884\u5904\u7406\u5668\u53ef\u4ee5\u4f7f\u4f60\u53d7\u76ca\u532a\u6d45\u3002\u9884\u5904\u7406\u5668\u662f\u4e00\u79cd\u5de5\u5177\uff0c\u53ef\u8ba9\u4f60\u4f7f\u7528CSS\u4e2d\u4e0d\u5b58\u5728\u7684\u9ad8\u7ea7\u529f\u80fd\u3002\u8fd9\u4e9b\u53ef\u80fd\u662f\u5faa\u73af\u53d8\u91cf\u751a\u81f3\u51fd\u6570\u4e4b\u7c7b\u7684\u4e1c\u897f\u3002<\/p>\n<p>\u6709\u5f88\u591a\u9884\u5904\u7406\u5668\u3002\u6700\u8457\u540d\u7684\u4e09\u4e2a\u5927\u6982\u5c31\u662fSass\uff0cLess\u548cStylus\u3002\u6211\u5efa\u8bae\u4f7f\u7528Sass\uff0c\u56e0\u4e3a\u5b83\u662f\u4e00\u4e2a\u7e41\u8363\u7684\u793e\u533a\uff0c\u5e76\u4e14\u4f60\u53ef\u4ee5\u5728\u7f51\u4e0a\u627e\u5230\u5b83\u7684\u5927\u91cf\u6587\u6863\u3002<\/p>\n<p>\u90a3\u4e48\uff0c\u9884\u5904\u7406\u5668\u5982\u4f55\u4e3a\u4f60\u63d0\u4f9b\u5e2e\u52a9\uff1f\u66f4\u597d\u5730\u7ec4\u7ec7\u4f60\u7684\u98ce\u683c<\/p>\n<p>\u9884\u5904\u7406\u7a0b\u5e8f\u53ef\u5e2e\u52a9\u4f60\u66f4\u597d\u5730\u7ec4\u7ec7\u6837\u5f0f\u3002\u4ed6\u4eec\u5177\u6709\u5c06\u4f60\u7684\u6587\u4ef6\u5206\u89e3\u4e3a\u8f83\u5c0f\u7684\u53ef\u91cd\u7528\u6587\u4ef6\u7684\u80fd\u529b\u3002\u8fd9\u4e9b\u53ef\u4ee5\u76f8\u4e92\u5bfc\u5165\uff0c\u4e5f\u53ef\u4ee5\u4ee5\u540e\u5206\u522b\u5bfc\u5165\u4f60\u7684\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n<p>&nbsp;<\/p>\n<pre><code class=\"language-css\" lang=\"css\">\/\/ Import different modules into one SCSS file\r\n@import 'settings';\r\n@import 'tools';\r\n@import 'generic';\r\n@import 'elements';\r\n@import 'objects';\r\n@import 'components';\r\n@import 'trumps';\r\n<\/code><\/pre>\n<h2><strong>\u5d4c\u5957\u4f60\u7684\u9009\u62e9\u5668<\/strong><\/h2>\n<p>\u589e\u5f3a\u53ef\u8bfb\u6027\u7684\u53e6\u4e00\u79cd\u597d\u65b9\u6cd5\u662f\u5d4c\u5957\u9009\u62e9\u5668\u3002\u8fd9\u662fCSS\u7f3a\u5c11\u7684\u4e00\u4e2a\u7b80\u5355\u800c\u5f3a\u5927\u7684\u529f<\/p>\n<pre><code class=\"language-css\" lang=\"css\">.wrapper {    \r\n    .sidebar {        \r\n        &amp;.collapsed {            \r\n            display: none;        \r\n        }\r\n        .list {            \r\n            .list-item {               \r\n                ...\r\n                &amp;.list-item--active {                   \r\n                    ...               \r\n                }            \r\n            }        \r\n        }    \r\n    }\r\n}\r\n<\/code><\/pre>\n<p>\u5206\u5c42\u7ed3\u6784\u4f7f\u66f4\u5bb9\u6613\u53ef\u89c6\u5316\u4e0d\u540c\u5143\u7d20\u5982\u4f55\u7ed3\u5408\u5728\u4e00\u8d77\u3002<\/p>\n<h2>\u6d4f\u89c8\u5668\u81ea\u52a8\u4e3a\u4f60\u7684\u89c4\u5219\u6dfb\u52a0\u524d\u7f00<\/h2>\n<p>CSS\u4e2d\u6709\u4e00\u4e9b\u975e\u6807\u51c6\u6216\u5b9e\u9a8c\u6027\u529f\u80fd\u7684\u524d\u7f00\u3002\u4e0d\u540c\u7684\u6d4f\u89c8\u5668\u4e3a\u5176\u4f7f\u7528\u4e0d\u540c\u7684\u524d\u7f00\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>-webkit-\uff1a\u9002\u7528\u4e8e\u57fa\u4e8eWebKit\u7684\u6d4f\u89c8\u5668\uff0c\u4f8b\u5982Chrome\uff0cSafari\u6216Opera\u7684\u8f83\u65b0\u7248\u672c\u3002<\/li>\n<li>-moz-\uff1a\u9002\u7528\u4e8eFirefox\u3002<\/li>\n<li>-o-\uff1a\u9002\u7528\u4e8e\u65e7\u7248Opera\u3002<\/li>\n<li>-ms-\uff1a\u7528\u4e8eIE\u548cEdge\u3002<\/li>\n<\/ul>\n<p>\u4e3a\u4e86\u652f\u6301\u6240\u6709\u4e3b\u6d41\u6d4f\u89c8\u5668\uff0c\u6211\u4eec\u5fc5\u987b\u591a\u6b21\u5b9a\u4e49\u67d0\u4e9b\u5c5e\u6027\u3002<\/p>\n<p>&nbsp;<\/p>\n<pre><code class=\"language-css\" lang=\"css\">.gradient {    \r\n    background: rgb(30,87,153);    \r\n    background: -moz-linear-gradient(top, rgba(30,87,153,1) 0%, rgba(41,137,216,1) 50%, rgba(32,124,202,1) 51%, rgba(125,185,232,1) 100%);    \r\n    background: -webkit-linear-gradient(top, rgba(30,87,153,1) 0%, rgba(41,137,216,1) 50%, rgba(32,124,202,1) 51%, rgba(125,185,232,1) 100%);    \r\n    background: linear-gradient(to bottom, rgba(30,87,153,1) 0%, rgba(41,137,216,1) 50%, rgba(32,124,202,1) 51%, rgba(125,185,232,1) 100%);    \r\n    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#1e5799', endColorstr='#7db9e8', GradientType=0);}\r\n<\/code><\/pre>\n<p>\u9884\u5904\u7406\u5668\u901a\u8fc7mixins\u5e2e\u52a9\u6211\u4eec\u89e3\u51b3\u6b64\u95ee\u9898-\u53ef\u4ee5\u4ee3\u66ff\u786c\u7f16\u7801\u503c\u4f7f\u7528\u7684\u51fd\u6570\u3002<\/p>\n<p>&nbsp;<\/p>\n<pre><code class=\"language-css\" lang=\"css\">@mixin gradient() {    \r\n    background: rgb(30,87,153);    \r\n    background: -moz-linear-gradient(top, rgba(30,87,153,1) 0%, rgba(41,137,216,1) 50%, rgba(32,124,202,1) 51%, rgba(125,185,232,1) 100%);    \r\n    background: -webkit-linear-gradient(top, rgba(30,87,153,1) 0%, rgba(41,137,216,1) 50%,rgba(32,124,202,1) 51%, rgba(125,185,232,1) 100%);    \r\n    background: linear-gradient(to bottom, rgba(30,87,153,1) 0%, rgba(41,137,216,1) 50%,rgba(32,124,202,1) 51%, rgba(125,185,232,1) 100%);    \r\n    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#1e5799', endColorstr='#7db9e8', GradientType=0);}\r\n.gradient {    \r\n    @include gradient();\r\n}\r\n<\/code><\/pre>\n<p>\u4e0d\u5fc5\u4e00\u904d\u53c8\u4e00\u904d\u5730\u5199\u51fa\u76f8\u540c\u7684\u5185\u5bb9\uff0c\u800c\u53ea\u9700mixin\u5728\u9700\u8981\u65f6\u6dfb\u52a0\u5373\u53ef\u3002<\/p>\n<h2><strong>\u4f7f\u7528\u540e\u5904\u7406\u5668<\/strong><\/h2>\n<p>\u66f4\u597d\u7684\u9009\u62e9\u662f\u540e\u5904\u7406\u5668\u3002\u4e00\u65e6CSS\u7531\u9884\u5904\u7406\u5668\u751f\u6210\uff0c\u5219\u540e\u5904\u7406\u5668\u53ef\u4ee5\u8fd0\u884c\u5176\u4ed6\u4f18\u5316\u6b65\u9aa4\u3002\u6700\u53d7\u6b22\u8fce\u7684\u540e\u5904\u7406\u5668\u4e4b\u4e00\u662fPostCSS\u3002<\/p>\n<p>\u4f60\u53ef\u4ee5\u4f7f\u7528PostCSS\u6765\u81ea\u52a8\u4e3aCSS\u89c4\u5219\u6dfb\u52a0\u524d\u7f00\uff0c\u56e0\u6b64\u4f60\u4e0d\u5fc5\u62c5\u5fc3\u4f1a\u9057\u6f0f\u4e3b\u8981\u7684\u6d4f\u89c8\u5668\u3002\u4ed6\u4eec\u4f7f\u7528\u201c \u6211\u53ef\u4ee5\u4f7f\u7528\u201d\u4e2d\u7684\u503c\uff0c\u56e0\u6b64\u5b83\u59cb\u7ec8\u662f\u6700\u65b0\u7684\u3002<\/p>\n<p>\u53e6\u4e00\u4e2a\u5f88\u68d2\u7684\u540e\u5904\u7406\u5668\u662fautoprefixer\u3002\u4f7f\u7528autoprefixer\uff0c\u5f53\u4f60\u8981\u652f\u6301\u6700\u540e\u56db\u4e2a\u7248\u672c\u65f6\uff0c\u65e0\u9700\u5728CSS\u6587\u4ef6\u4e2d\u5199\u5165\u4efb\u4f55\u6d4f\u89c8\u5668\u524d\u7f00\u5c31\u53ef\u4ee5\u5b8c\u6210\u6240\u6709\u5de5\u4f5c\uff01<\/p>\n<p>&nbsp;<\/p>\n<pre><code class=\"language-javascript\" lang=\"javascript\">const autoprefixer = require('autoprefixer')({    \r\n    browsers: [  'last 4 versions',  'not ie &lt; 9'    ]\r\n});\r\n<\/code><\/pre>\n<h2><strong>\u4f7f\u7528\u914d\u7f6e\u8fdb\u884c\u4e00\u81f4\u7684\u8bbe\u8ba1<\/strong><\/h2>\n<p>\u9664mixins\u5916\uff0c\u4f60\u8fd8\u53ef\u4ee5\u9009\u62e9\u4f7f\u7528\u53d8\u91cf\u3002\u7528\u77ed\u7ebf\u8fde\u63a5\u4e00\u8d77\uff0c\u4f60\u53ef\u4ee5\u6267\u884c\u8bbe\u8ba1\u89c4\u5219\u3002<\/p>\n<p>&nbsp;<\/p>\n<pre><code class=\"language-css\" lang=\"css\">\/\/ Font definitions\r\n$font-12: 12px;\r\n$font-21: 21px;\/\/ Color definitions\r\n$color-white: #FAFAFA;\r\n$color-black: #212121;\r\n<\/code><\/pre>\n<h1><strong>4\u3001\u4f7f\u7528\u6807\u8bb0\u4ee3\u66ffCSS<\/strong><\/h1>\n<p>\u6211\u4eec\u63a5\u7740\u7ee7\u7eed\u8ba8\u8bba\u5b9e\u9645\u7684CSS\u3002\u8fd9\u4e2a\u4e5f\u662f\u7ecf\u5e38\u88ab\u5ffd\u7565\u3002\u901a\u5e38\uff0c\u4f60\u53ef\u4ee5\u901a\u8fc7\u7b80\u5355\u5730\u4f7f\u7528\u6b63\u786e\u7684HTML\u5143\u7d20\u6765\u51cf\u5c0fCSS\u6587\u4ef6\u7684\u5927\u5c0f\u3002\u5047\u8bbe\u4f60\u7684\u6807\u9898\u5305\u542b\u4ee5\u4e0b\u89c4\u5219\uff1a<\/p>\n<p>&nbsp;<\/p>\n<pre><code class=\"language-css\" lang=\"css\">span.heading {    \r\n    display: block;    \r\n    font-size: 1.2em;    \r\n    margin-top: 1em;    \r\n    margin-bottom: 1em; \r\n}\r\n<\/code><\/pre>\n<p>\u5982\u679c\u4f60\u6b63\u5728\u4f7f\u7528span\u5143\u7d20\u4f5c\u4e3a\u6807\u9898\u3002\u5b83\u5c06\u8986\u76d6\u9ed8\u8ba4\u7684\u663e\u793a\uff0c\u95f4\u8ddd\u6216\u5b57\u4f53\u6837\u5f0f\u3002\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528h1\uff0ch2\u6216h3\u6765\u907f\u514d\u8fd9\u79cd\u60c5\u51b5\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u5b83\u4eec\u5177\u6709\u4f60\u8981\u4e0e\u5176\u4ed6\u5143\u7d20\u4e00\u8d77\u5b9e\u73b0\u7684\u6837\u5f0f\u3002\u4f60\u53ef\u4ee5\u7acb\u5373\u6446\u8131\u56db\u4e2a\u4e0d\u5fc5\u8981\u7684\u89c4\u5219\u3002<\/p>\n<h1><strong>5\u3001\u4f7f\u7528\u901f\u8bb0\u5c5e\u6027<\/strong><\/h1>\n<p>\u4e3a\u4e86\u8fdb\u4e00\u6b65\u51cf\u5c11\u89c4\u5219\u6570\u91cf\uff0c\u8bf7\u59cb\u7ec8\u5c1d\u8bd5\u4f7f\u7528\u7b80\u5199\u5c5e\u6027\u3002\u5bf9\u4e8e\u4e0a\u9762\u7684\u793a\u4f8b\uff0c\u6211\u4eec\u53ef\u4ee5\u8bf4\uff1a<\/p>\n<p>&nbsp;<\/p>\n<pre><code>.heading {    margin: 1em 0;}\r\n<\/code><\/pre>\n<p>\u5bf9\u4e8e\u5176\u4ed6\u5c5e\u6027\uff08\u4f8b\u5982\uff0c\u586b\u5145\uff0c\u8fb9\u6846\u6216\u80cc\u666f\uff09\uff0c\u4e5f\u662f\u5982\u6b64\u3002<\/p>\n<p>&nbsp;<\/p>\n<h1><strong>6\u3001\u51cf\u5c11\u5197\u4f59<\/strong><\/h1>\n<p>\u8fd9\u4e0e\u4e0a\u4e00\u70b9\u7d27\u5bc6\u76f8\u5173\u3002\u6709\u65f6\u5f88\u96be\u53d1\u73b0\u5197\u4f59\uff0c\u7279\u522b\u662f\u5f53\u4e24\u4e2a\u9009\u62e9\u5668\u4e2d\u7684\u91cd\u590d\u89c4\u5219\u672a\u9075\u5faa\u76f8\u540c\u987a\u5e8f\u65f6\u3002\u4f46\u662f\uff0c\u5982\u679c\u4f60\u7684\u7c7b\u4ec5\u5728\u4e00\u4e2a\u6216\u4e24\u4e2a\u89c4\u5219\u4e2d\u6709\u6240\u4e0d\u540c\uff0c\u5219\u6700\u597d\u5916\u5305\u8fd9\u4e9b\u89c4\u5219\u5e76\u5c06\u5b83\u4eec\u7528\u4f5c\u989d\u5916\u7684\u7c7b\u3002\u4ee3\u66ff\u8fd9\u4e2a\uff1a<\/p>\n<p>&nbsp;<\/p>\n<pre><code class=\"language-html\" lang=\"html\">&lt;style&gt;    \r\n .warning {        \r\n    width: 100%;        \r\n     height: 50px;       \r\n     background: yellow;        \r\n     border-radius: 5px;    \r\n    }\r\n    .elevated-warning {        \r\n        width: 100%;        \r\n        height: 50px;        \r\n        font-size: 150%;        \r\n        background: yellow;        \r\n        box-shadow: 1px 2px 5px #CCC;        \r\n        border-radius: 5px;    \r\n    }\r\n&lt;\/style&gt;\r\n&lt;div class=\"warning\"&gt;\u26a0\ufe0f&lt;\/div&gt;&lt;div class=\"elevated-warning\"&gt;&lt;\/div&gt;\r\n<\/code><\/pre>\n<p>\u5c1d\u8bd5\u4f7f\u7528\u7c7b\u4f3c\u7684\u65b9\u6cd5\uff1a<\/p>\n<p>&nbsp;<\/p>\n<pre><code class=\"language-html\" lang=\"html\">&lt;style&gt;    .warning {       \r\n    width: 100%;        \r\n    height: 50px;        \r\n    background: yellow;        \r\n    border-radius: 5px;    \r\n    }\r\n    .warning--elevated {        \r\n        font-size: 150%;        \r\n        box-shadow: 1px 2px 5px #CCC;    \r\n    }\r\n&lt;\/style&gt;\r\n&lt;div class=\"warning\"&gt;\u26a0\ufe0f&lt;\/div&gt;&lt;div class=\"warning warning--elevated\"&gt;&lt;\/div&gt;\r\n<\/code><\/pre>\n<h1><strong>7\u3001\u907f\u514d\u4f7f\u7528\u590d\u6742\u7684\u9009\u62e9\u5668<\/strong><\/h1>\n<p>\u4f7f\u7528\u590d\u6742\u7684\u9009\u62e9\u5668\u6709\u4e24\u4e2a\u4e3b\u8981\u95ee\u9898\u3002\u9996\u5148\uff0c\u63d0\u9ad8\u7684\u7279\u5f02\u6027\u4e0d\u4ec5\u4f1a\u4f7f\u4ee5\u540e\u66f4\u96be\u91cd\u5199\u73b0\u6709\u89c4\u5219\uff0c\u800c\u4e14\u4f1a\u589e\u52a0\u6d4f\u89c8\u5668\u5339\u914d\u9009\u62e9\u5668\u7684\u65f6\u95f4\u3002<\/p>\n<h2><strong>\u5339\u914d\u9009\u62e9\u5668<\/strong><\/h2>\n<p>\u5f53\u4f60\u7684\u6d4f\u89c8\u5668\u8bd5\u56fe\u89e3\u91ca\u9009\u62e9\u5668\u5e76\u786e\u5b9a\u5b83\u4e0e\u54ea\u4e2a\u5143\u7d20\u5339\u914d\u65f6\uff0c\u5b83\u4eec\u4ece\u53f3\u5230\u5de6\u3002\u5c31\u6027\u80fd\u800c\u8a00\uff0c\u8fd9\u6bd4\u5176\u4ed6\u65b9\u6cd5\u8981\u5feb\u3002\u8ba9\u6211\u4eec\u4ee5\u4e0b\u9762\u7684\u9009\u62e9\u5668\u4e3a\u4f8b\u3002<\/p>\n<p>&nbsp;<\/p>\n<pre><code class=\"language-css\" lang=\"css\">.deeply .nested .selector span {    ...}\r\n<\/code><\/pre>\n<p>\u4f60\u7684\u6d4f\u89c8\u5668\u5c06\u9996\u5148\u4ece\u5f00\u59cbspan\u3002\u5b83\u5c06\u5339\u914d\u6240\u6709span\u6807\u7b7e\uff0c\u7136\u540e\u8f6c\u5230\u4e0b\u4e00\u4e2a\u6807\u7b7e\u3002\u5b83\u5c06\u6ee4\u9664\u7c7b\u4e2d\u7684spans\uff0c.selector\u4f9d\u6b64\u7c7b\u63a8\u3002<\/p>\n<p>\u4e0d\u5efa\u8bae\u5c06\u6807\u8bb0\u7528\u4e8eCSS\u9009\u62e9\u5668\uff0c\u56e0\u4e3a\u5b83\u4f1a\u4e0e\u6bcf\u4e2a\u6807\u8bb0\u5339\u914d\u3002\u867d\u7136\u5dee\u5f02\u53ea\u80fd\u5728\u51e0\u5206\u4e4b\u4e00\u6beb\u79d2\u5185\u6d4b\u91cf\uff0c\u4f46\u603b\u7684\u6765\u8bf4\u5f88\u5c11\u3002\u66f4\u91cd\u8981\u7684\u662f\uff0c\u51cf\u5c11\u5176\u4ed6\u539f\u56e0\u7684\u590d\u6742\u6027\u662f\u4e00\u4e2a\u597d\u4e60\u60ef\u3002<\/p>\n<h2><strong>\u4e86\u89e3\u9009\u62e9\u5668<\/strong><\/h2>\n<p>\u673a\u5668\u89e3\u6790\u4e0d\u4ec5\u56f0\u96be\uff0c\u800c\u4e14\u4eba\u7c7b\u4e5f\u96be\u4ee5\u89e3\u6790\u3002\u4ee5\u4e0b\u9762\u4ee3\u7801\u4e3a\u4f8b\uff1a<\/p>\n<p>&nbsp;<\/p>\n<pre><code class=\"language-css\" lang=\"css\">[type=\"checkbox\"]:checked + [class$=\"-confirmation\"]::after {    ...}\r\n<\/code><\/pre>\n<p>\u4f60\u8ba4\u4e3a\u4e0a\u8ff0\u89c4\u5219\u4f55\u65f6\u9002\u7528\uff1f\u901a\u8fc7\u521b\u5efa\u81ea\u5b9a\u4e49\u7c7b\u5e76\u4f7f\u7528JavaScript\u8fdb\u884c\u5207\u6362\uff0c\u53ef\u4ee5\u7b80\u5316\u6b64\u8fc7\u7a0b\u3002<\/p>\n<p>&nbsp;<\/p>\n<pre><code class=\"language-css\" lang=\"css\">.confirmation-icon::after {    ...}\r\n<\/code><\/pre>\n<p>\u73b0\u5728\u770b\u8d77\u6765\u66f4\u52a0\u6109\u5feb\u3002\u5982\u679c\u4f60\u4ecd\u7136\u9700\u8981\u4e00\u4e2a\u8fc7\u4e8e\u590d\u6742\u7684\u9009\u62e9\u5668\uff0c\u5e76\u4e14\u8ba4\u4e3a\u522b\u65e0\u9009\u62e9\uff0c\u8bf7\u5728\u4e0b\u9762\u7559\u4e0b\u8bc4\u8bba\u4ee5\u89e3\u91ca\u4f60\u7684\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n<p>&nbsp;<\/p>\n<pre><code class=\"language-css\" lang=\"css\">\/** * Creates a confirmation icon after a checkbox is selected. * Select all labels ending with a class name of \"-confirmation\" * that are preceeded by a checked checkbox. * PS.: There's no other way to get around this, don't try to fix it. **\/\r\n.checkbox:checked + label[class$=\"-confirmation\"]::after {    ...}\r\n<\/code><\/pre>\n<h1><strong>8\u3001\u4e0d\u8981\u5220\u9664\u8f6e\u5ed3<\/strong><\/h1>\n<p>\u8fd9\u662f\u5f00\u53d1\u4eba\u5458\u5728\u7f16\u5199CSS\u65f6\u6700\u5e38\u72af\u7684\u9519\u8bef\u4e4b\u4e00\u3002\u5c3d\u7ba1\u4f60\u53ef\u80fd\u8ba4\u4e3a\u5220\u9664\u8f6e\u5ed3\u521b\u5efa\u7684\u7a81\u51fa\u663e\u793a\u6ca1\u6709\u4efb\u4f55\u95ee\u9898\uff0c\u4f46\u5b9e\u9645\u4e0a\uff0c\u4f60\u4f7f\u7f51\u7ad9\u65e0\u6cd5\u8bbf\u95ee\u3002\u901a\u5e38\u5c06\u6b64\u89c4\u5219\u6dfb\u52a0\u4e3aCSS\u7684\u91cd\u7f6e\u503c\u3002<\/p>\n<pre><code class=\"language-css\" lang=\"css\">:focus {    outline: none;}\r\n<\/code><\/pre>\n<p>\u4f46\u662f\uff0c\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u4ec5\u4f7f\u7528\u952e\u76d8\u5bfc\u822a\u7684\u7528\u6237\u5c31\u4e0d\u4f1a\u77e5\u9053\u4ed6\u4eec\u6b63\u5728\u5173\u6ce8\u4f60\u7684\u7f51\u7ad9\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u5982\u679c\u9ed8\u8ba4\u6837\u5f0f\u5bf9\u4f60\u7684\u54c1\u724c\u4e0d\u5229\uff0c\u8bf7\u521b\u5efa\u81ea\u5b9a\u4e49\u8f6e\u5ed3\u3002\u53ea\u8981\u786e\u4fdd\u5728\u805a\u7126\u5143\u7d20\u65b9\u9762\u6709\u67d0\u79cd\u6307\u793a\u5373\u53ef\u3002<\/p>\n<h1><strong>9\u3001\u9996\u5148\u4f7f\u7528\u79fb\u52a8\u8bbe\u5907<\/strong><\/h1>\n<p>\u5f53\u4f60\u5fc5\u987b\u5904\u7406\u5a92\u4f53\u67e5\u8be2\u65f6\uff0c\u8bf7\u59cb\u7ec8\u4f7f\u7528\u79fb\u52a8\u4f18\u5148\u3002\u4ee5\u79fb\u52a8\u8bbe\u5907\u4e3a\u5148\u7684\u65b9\u6cd5\u610f\u5473\u7740\u4f60\u9996\u5148\u8981\u5f00\u59cb\u4e3a\u5c0f\u5c4f\u5e55\u8bbe\u5907\u7f16\u5199CSS\u5e76\u4ece\u90a3\u91cc\u5f00\u59cb\u6784\u5efa\u3002\u8fd9\u4e5f\u79f0\u4e3a\u6e10\u8fdb\u589e\u5f3a\u3002<\/p>\n<p>\u8fd9\u5c06\u786e\u4fdd\u4f60\u4e3b\u8981\u6dfb\u52a0\u989d\u5916\u7684\u89c4\u5219\u6765\u8fce\u5408\u5927\u5c4f\u5e55\u8bbe\u5907\uff0c\u800c\u4e0d\u662f\u91cd\u5199\u73b0\u6709\u7684CSS\u89c4\u5219\u3002\u8fd9\u6837\u53ef\u4ee5\u51cf\u5c11\u6700\u7ec8\u4f7f\u7528\u7684\u89c4\u5219\u6570\u91cf\u3002<\/p>\n<p>\u4f60\u5982\u4f55\u5224\u65ad\u662f\u5426\u4f7f\u7528\u79fb\u52a8\u4f18\u5148\uff1f\u5982\u679c\u4f60\u7684\u5a92\u4f53\u67e5\u8be2\u4f7f\u7528min-width\uff0c\u90a3\u4e48\u4f60\u5c06\u8d70\u4e0a\u6b63\u786e\u7684\u9053\u8def\u3002<\/p>\n<p>&nbsp;<\/p>\n<pre><code class=\"language-css\" lang=\"css\">\/* Mobile-first media query, everything above 600px will get the below styles *\/\r\n@media (min-width: 600px) {    \/* your CSS rules *\/}\r\n\/* Non mobile-first media query, everything below 600px will get the below styles *\/@media (max-width: 600px) {    \/* your CSS rules *\/}\r\n<\/code><\/pre>\n<h1><strong>10\u3001\u538b\u7f29<\/strong><\/h1>\n<p>\u6700\u540e\uff0c\u538b\u7f29\u6346\u7ed1\u6587\u4ef6\u4ee5\u51cf\u5c0f\u5176\u5927\u5c0f\u3002\u538b\u7f29\u5220\u9664\u6ce8\u91ca\u548c\u7a7a\u767d\uff0c\u4f60\u7684\u6346\u7ed1\u8f6f\u4ef6\u5c31\u53ef\u4ee5\u5feb\u901f\u7684\u83b7\u53d6\u6570\u636e\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u5982\u679c\u8fd8\u6ca1\u6709\uff0c\u8bf7\u5728\u670d\u52a1\u5668\u7aef\u4e5f\u542f\u7528\u538b\u7f29\u3002<\/p>\n<p>\u8fdb\u4e00\u6b65\u51cf\u5c11CSS 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href=\"https:\/\/mp.weixin.qq.com\/s\/ILSqgapaMgipfGjgqM6kqw\">\u539f\u6587<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u82f1\u6587 | https:\/\/medium.com\/better-programming\/10-best-prac 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