{"id":5775,"date":"2016-11-18T01:25:29","date_gmt":"2016-11-17T17:25:29","guid":{"rendered":"http:\/\/www.zhangxinxu.com\/wordpress\/?p=5775"},"modified":"2020-06-14T11:27:52","modified_gmt":"2020-06-14T03:27:52","slug":"development-ui-component-based-on-css-color","status":"publish","type":"post","link":"https:\/\/www.zhangxinxu.com\/wordpress\/2016\/11\/development-ui-component-based-on-css-color\/","title":{"rendered":"\u57fa\u4e8eCSS color\u5c5e\u6027\u7684\u9759\u6001UI\u7ec4\u4ef6\u91cd\u6784\u7b56\u7565"},"content":{"rendered":"<p>by <a href=\"http:\/\/www.zhangxinxu.com\/\">zhangxinxu<\/a> from <a href=\"http:\/\/www.zhangxinxu.com\/wordpress\/?p=5775\">http:\/\/www.zhangxinxu.com\/wordpress\/?p=5775<\/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\u4f20\u7edf\u9759\u6001UI\u7ec4\u4ef6\u5b9e\u73b0\u7684\u9690\u9690\u75db\u70b9<\/h3>\n<p>\u6211\u4eec\u90fd\u77e5\u9053\uff0c\u4e00\u4e2a\u7f51\u7ad9\uff0c\u53ea\u8981\u8bbe\u8ba1\u5e08\u7a0d\u5fae\u6709\u70b9\u4e13\u4e1a\uff0c\u5176\u7ad9\u70b9\u7684\u4e00\u4e9b\u57fa\u7840\u989c\u8272\u90fd\u662f\u8d2f\u7a7f\u59cb\u7ec8\u7684\u3002<\/p>\n<p>\u4e3b\u8272\uff0c\u94fe\u63a5\u8272\uff0c\u8b66\u793a\u989c\u8272\uff0c\u4ee5\u53ca\u5404\u79cd\u72b6\u6001\u989c\u8272\u7b49\u7b49\uff0c\u90fd\u662f\u4e00\u8109\u76f8\u627f\u7684\uff0c\u5982\u679c\u8d35\u7ad9\u7684\u6587\u5b57\u7684\u7ea2\u8272\u548c\u6309\u94ae\u7684\u7ea2\u8272\u662f\u4e0d\u4e00\u6837\u7684\u7ea2\u8272\uff0c\u6587\u5b57\u7684\u7eff\u8272\u548c\u6309\u94ae\u7684\u7eff\u8272\u4e0d\u662f\u4e00\u4e2a\u7eff\u8272\uff0c\u6587\u5b57\u7684\u84dd\u8272\u548c\u6309\u94ae\u7684\u84dd\u8272\u4e0d\u662f\u4e00\u4e2a\u84dd\u8272\uff0c\u6211\u53ea\u80fd\u6df1\u8868\u9057\u61be\u3002<\/p>\n<p>\u4f20\u7edf\u7684\u5b9e\u73b0\uff0c\u5305\u62ec\u73b0\u5728\u79fb\u52a8\u7aef\u51e0\u4e4e\u6240\u6709\u7684\u5b9e\u73b0\u5957\u8def\u90fd\u662f\u4e0b\u9762\u8fd9\u6837\u7684\uff0c\u65e0\u8bba\u662f\u6807\u7b7e\u8fd8\u662f\u6309\u94ae\uff0c\u90fd\u662f\u5148\u8bbe\u5b9a\u4e00\u4e2a\u57fa\u7840\u7c7b\u540d\uff0c\u5199\u4e0b\u57fa\u672c\u6837\u5f0f\uff0c\u7136\u540e\u4e0d\u540c\u7684\u989c\u8272\u91cd\u65b0\u547d\u540d\u4e00\u4e2a\u72b6\u6001\u7c7b\u540d\uff0c\u8986\u76d6\u9ed8\u8ba4\u7684\u8fb9\u6846\u8272\u6216\u8005\u80cc\u666f\u8272\u6216\u8005\u6587\u5b57\u989c\u8272\uff0c\u662f\u4ec0\u4e48\u989c\u8272\u5c31\u5199\u4ec0\u4e48\u989c\u8272\u3002<\/p>\n<p>\u6211\u4eec\u4e0d\u59a8\u770b\u770b\u5fae\u4fe1\u5f00\u6e90\u7684weui\u4e2d\u6309\u94ae\u7684\u5b9e\u73b0\uff1a<a href=\"https:\/\/weui.io\/#button\">https:\/\/weui.io\/#button<\/a><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201611\/weui-button.png\" width=\"320\" height=\"569\" alt=\"weui button\" class=\"alignnone\" \/><\/p>\n<p>HTML\u90e8\u5206\uff1a<\/p>\n<pre>&lt;a href=\"#\" class=\"weui_btn weui_btn_primary\"&gt;\u6309\u94ae&lt;\/a&gt;\r\n&lt;a href=\"#\" class=\"weui_btn weui_btn_warn\"&gt;\u786e\u8ba4&lt;\/a&gt;\r\n&lt;a href=\"#\" class=\"weui_btn weui_btn_default\"&gt;\u6309\u94ae&lt;\/a&gt;\r\n<\/pre>\n<p>\u5bf9\u5e94\u7684CSS\u5b9e\u73b0\u5982\u4e0b\uff1a<\/p>\n<pre>.weui-btn {\r\n    position: relative;\r\n    display: block;\r\n    margin-left: auto; margin-right: auto;\r\n    padding-left: 14px; padding-right: 14px;\r\n    box-sizing: border-box;\r\n    font-size: 18px;\r\n    text-align: center;\r\n    text-decoration: none;\r\n    color: #FFFFFF;\r\n    line-height: 2.55555556;\r\n    border-radius: 5px;\r\n    overflow: hidden;\r\n}\r\n.weui-btn_primary {\r\n    background-color: #1aad19;\r\n}\r\n.weui-btn_default {\r\n    color: #000000;\r\n    background-color: #F8F8F8;\r\n}\r\n.weui-btn_warn {\r\n    background-color: #E64340;\r\n}\r\n<span style=\"color:green;\">\/* \u4e0b\u9762\u662f2\u4e2a\u7ebf\u6846\u6309\u94ae *\/<\/span>\r\n.weui-btn_plain-default {\r\n    color: #353535;\r\n    border: 1px solid #353535;\r\n}\r\n.weui-btn_plain-primary {\r\n    color: #1aad19;\r\n    border: 1px solid #1aad19;\r\n}<\/pre>\n<p>\u57fa\u672c\u4e0a\uff0c\u6211\u4eec\u90fd\u662f\u8fd9\u4e48\u5b9e\u73b0\u7684\uff0c\u7528\u8d77\u6765\u4e5f\u8fd8\u884c\uff0c\u4f46\u662f\uff0c\u4e0d\u77e5\u9053\u5927\u5bb6\u5728\u5199\u7c7b\u4f3c\u4e0a\u9762\u4ee3\u7801\u7684\u65f6\u5019\uff0c\u6709\u6ca1\u6709\u4e00\u79cd\u5197\u4f59\u548c\u5570\u55e6\u7684\u611f\u89c9\uff1f\u2014\u2014\u5c31\u989c\u8272\u4e0d\u4e00\u6837\u800c\u5df2\uff0c\u4f46\u662f\uff0c\u5374\u8981\u91cd\u65b0\u547d\u540d\u4e00\u4e2a\u7c7b\u540d\uff0c\u7136\u540e\u91cd\u65b0\u5199\u989c\u8272\uff1b\u53ea\u8981\u518d\u591a\u4e00\u4e2a\u72b6\u6001\uff0c\u5c31\u8981\u518d\u5199\u4e00\u6279\u3002\u597d\u9ebb\u70e6\uff01<\/p>\n<p>\u4e3a\u4ec0\u4e48\u9690\u9690\u4f1a\u6709\u4e0a\u9762\u8fd9\u6837\u7684\u611f\u89c9\u5462\uff1f<\/p>\n<p>\u6211\u6765\u5e26\u5927\u5bb6\u5256\u6790\u4e0b\u3002<\/p>\n<p><strong>1. \u6309\u94ae\u72b6\u6001<\/strong><br \/>\n\u672c\u8d28\u4e0a\uff0c\u6309\u94ae\u5c313\u4e2a\u72b6\u6001\uff0c\u5e38\u7528\u6001\uff0c\u9ed8\u8ba4\u6001\u548c\u8b66\u793a\u6001\uff0c\u4f46\u662f\uff0c\u4ece\u7c7b\u540d\u7684\u6570\u91cf\u4e0a\u6765\u770b\uff0c\u5374\u89815\u4e2a\uff0c\u800c\u4e14\u547d\u540d\u4e0a\u53c8\u957f\u6709\u5570\u55e6\uff0c\u771f\u7684\u5f88\u96be\u5fcd\u53d7\uff0c\u5982\u679c\u518d\u548cweui\u4e2d\u6309\u94ae\u7981\u7528\u6837\u5f0f\u6df7\u5728\u4e00\u8d77\uff0c\u8db3\u6709\u8fd9\u4e48\u957f\uff0c\u770b\u6211\u7684\u624b\u81c2\uff0c\u5168\u90e8\u5f20\u5f00\u90fd\u4e0d\u591f\u554a\uff01\u4f8b\u5982\u4e0b\u9762\u8fd9\u4e2a\u7eff\u8272\u5c0f\u6309\u94ae\u7684\u7981\u7528\u6001\u8868\u793a\uff1a<\/p>\n<pre>&lt;a href=\"#\" class=\"<span style=\"color:#cd0000;\">weui-btn weui-btn_mini weui-btn_primary weui-btn_disabled<\/span>\"&gt;\u6309\u94ae&lt;\/a&gt;<\/pre>\n<p>\u5b9e\u9645\u4e0a\uff0c\u6211\u4eec\u53ef\u4ee5\u628a\u72b6\u6001\u5355\u72ec\u62bd\u8c61\u51fa\u6765\uff0c\u5982\uff1a <code>default<\/code>, <code>primary<\/code>, <code>warn<\/code>, <code>mini<\/code>, <code>disabled<\/code>\uff0c\u4e0e\u57fa\u7840\u6309\u94ae\u6837\u5f0f\u76f8\u4e92\u7ed3\u5408\uff0c\u751f\u6210UI\u6548\u679c\uff0c\u8fd9\u6837\uff0c\u5728HTML\u4e2d\u4f7f\u7528\u7c7b\u540d\u7684\u65f6\u5019\u4f1a\u6e05\u723d\u5f88\u591a\uff0c\u800c\u4e14\u8bb0\u5fc6\u7684\u6210\u672c\u4e5f\u964d\u4f4e\u4e86\u3002<\/p>\n<p>\u5176\u6838\u5fc3\u601d\u60f3\u548c\u6280\u672f\u7ec6\u8282\u53c2\u89c1\u6211\u524d\u4e0d\u4e45\u521a\u5199\u7684\u6587\u7ae0\uff1a\u201c<a href=\"http:\/\/www.zhangxinxu.com\/wordpress\/2016\/10\/classname-active-checked-web-ux-develop\/\">\u57fa\u4e8eactive,checked\u7b49\u72b6\u6001\u7c7b\u540d\u7684web\u524d\u7aef\u4ea4\u4e92\u5f00\u53d1<\/a>\u201d\u3002<\/p>\n<p>\u5982\u679c\u4e0a\u9762\u7684\u6309\u94ae\u5957\u7528\u8fd9\u79cd\u7b56\u7565\uff0c\u5219\u4ee3\u7801\u5e94\u8be5\u7c7b\u4f3c\u4e0b\u9762\uff1a<br \/>\nHTML\u90e8\u5206\uff1a<\/p>\n<pre>&lt;a href=\"#\" class=\"weui_btn primary\"&gt;\u6309\u94ae&lt;\/a&gt;\r\n&lt;a href=\"#\" class=\"weui_btn warn\"&gt;\u786e\u8ba4&lt;\/a&gt;\r\n&lt;a href=\"#\" class=\"weui_btn default\"&gt;\u6309\u94ae&lt;\/a&gt;\r\n<\/pre>\n<p>\u5bf9\u5e94\u7684CSS\u5b9e\u73b0\u5982\u4e0b\uff1a<\/p>\n<pre>.weui-btn {\r\n    ...\r\n}\r\n.weui-btn.primary {\r\n    background-color: #1aad19;\r\n}\r\n.weui-btn.default {\r\n    color: #000000;\r\n    background-color: #F8F8F8;\r\n}\r\n.weui-btn.warn {\r\n    background-color: #E64340;\r\n}\r\n<span style=\"color:green;\">\/* \u4e0b\u9762\u662f2\u4e2a\u7ebf\u6846\u6309\u94ae *\/<\/span>\r\n.weui-btn_plain.default {\r\n    color: #353535;\r\n    border: 1px solid #353535;\r\n}\r\n.weui-btn_plain.primary {\r\n    color: #1aad19;\r\n    border: 1px solid #1aad19;\r\n}<\/pre>\n<p>\u5f53\u7136\uff0c\u5bf9\u4e8eweui\u8fd9\u79cd\u5f00\u6e90\u7684\u9879\u76ee\u800c\u8a00\uff0c\u4e0a\u9762\u57fa\u4e8e\u72b6\u6001\u7c7b\u540d\u7b56\u7565\u4e0d\u4e00\u5b9a\u5408\u9002\uff0c\u56e0\u4e3a\u548c\u5176\u4ed6\u9879\u76ee\u6df7\u6742\uff0c\u5bb9\u6613\u6709\u51b2\u7a81\u98ce\u9669\u3002<\/p>\n<p><strong>2. \u5404\u79cd\u989c\u8272<\/strong><br \/>\n\u4f8b\u5982<code>primary<\/code>\u72b6\u6001\uff0c\u660e\u660e\u8272\u503c\u90fd\u662f\u4e00\u6a21\u4e00\u6837\u7684<code>#1aad19<\/code>\uff0c\u4f46\u662f\u4e0a\u4e0b\u5374\u51fa\u73b0\u4e863\u6b21\uff0c\u5982\u679c\u4f7f\u7528Sass, Less\u53d8\u91cf\u8fd8\u597d\uff0c\u8981\u662f\u4f20\u7edf\u7684CSS\u5199\u6cd5\uff0c\u4ee5\u540e\u6362\u8d77\u989c\u8272\u6765\uff0c\u6015\u662f\u8981\u4e00\u4e2a\u4e00\u4e2a\u66ff\u6362\u4e86\u3002<\/p>\n<p>\u6bcf\u4e00\u79cd\u72b6\u6001\u90fd\u8981\u5199\u4e00\u6279\u989c\u8272\uff0c\u8981\u662f\u9047\u5230\u72b6\u6001\u591a\u7684\u573a\u666f\uff08\u5982\u4e0b\u9762\u8fd9\u5f20\u9879\u76ee\u8bbe\u8ba1\u7a3f\u622a\u56fe\uff09\uff1a<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201611\/2016-11-18_10.09.03.png\" width=\"450\" height=\"191\" alt=\"\u6807\u7b7e\u72b6\u6001\u4ee5\u53ca\u5404\u79cd\u989c\u8272\" class=\"alignnone\" \/><\/p>\n<p>\u5367\u69fd\uff0c\u90a3\u6837\u5f0f\u5c31\u8981\u832b\u832b\u591a\u4e86\uff0c\u4e00\u884c\u884c\u5168\u90e8\u8fb9\u6846\u8272\u6587\u5b57\u989c\u8272\uff0c\u8fb9\u6846\u8272\u6587\u5b57\u989c\u8272\uff0c\u4e0d\u8fc7\u51e1\u4e8b\u90fd\u8981\u4e24\u9762\u770b\uff0c\u81f3\u5c11\u8fd9\u6837\u5b50\u4ee3\u7801\u770b\u4e0a\u53bb\u5f88\u58ee\u89c2\u3002<\/p>\n<p>\u6bcf\u4e00\u79cd\u989c\u8272\u72b6\u6001\u90fd\u8981\u5199\u4e00\u904d<code>color<\/code>\u5c5e\u6027\u548c<code>border<\/code>\u5c5e\u6027\uff0c\u8fd9\u79cd\u505a\u82e6\u529b\u7684\u611f\u89c9\u6ca1\u4eba\u4f1a\u559c\u6b22\u7684\uff0c\u660e\u660e\u662f\u91cd\u590d\u7684\u4e1c\u897f\uff0c\u96be\u9053\u5c31\u4e0d\u80fd\u524d\u7aef\u5de5\u7a0b\u5316\u5417\uff1f<\/p>\n<p>\u5b9e\u9645\u4e0a\uff0c\u4ee5\u4e0a\u4e24\u4e2a\u9690\u9690\u7684\u75db\u70b9\u53ef\u4ee5\u4e00\u6b21\u6027\u5168\u90e8\u641e\u5b9a\uff0c\u5c31\u662f\u91c7\u7528\u672c\u6587\u6240\u8981\u4ecb\u7ecd\u7684\u201c<strong>\u57fa\u4e8ecolor\u5c5e\u6027\u7684UI\u7ec4\u4ef6\u91cd\u6784\u7b56\u7565<\/strong>\u201d\u3002<\/p>\n<h3>\u4e8c\u3001CSS color\u5c5e\u6027\u9a71\u52a8\u7684\u9759\u6001UI\u7ec4\u4ef6\u5b9e\u73b0\u7b56\u7565<\/h3>\n<p>\u8fd9\u79cd\u5b9e\u73b0\u7b56\u7565\u5177\u4f53\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li><strong>\u63d0\u53d6\u4e13\u95e8\u7684\u989c\u8272\u7c7b\u540d<\/strong><br \/>\n\u4f8b\u5982\uff0c\u7c7b\u4f3c\u4e0b\u9762\u8fd9\u6837\uff1a<\/p>\n<pre>.dark { color: #33373d; }\r\n.gray { color: #969ba3; }\r\n.blue { color: #4284ed; }\r\n.green { color: #7ed321; }\r\n.orange { color: #f0643a; }\r\n.yellow { color: #f0c53a; }\r\n.purple { color: #a091ff; }\r\n.red { color: #ed424b; }\r\n.white { color: #fff; }<\/pre>\n<p>\u7136\u540e\uff0c\u5efa\u8bae\u653e\u5728\u6240\u6709\u516c\u7528\u6837\u5f0f\u7684\u6700\u5e95\u90e8\u3002\n<\/li>\n<li><strong>\u9759\u6001UI\u7ec4\u4ef6\u6240\u6709\u52a8\u6001\u989c\u8272\u5168\u90e8\u8d70\u539f\u751f\u53d8\u91cf<\/strong><br \/>\n\u4f8b\u5982\uff0c<code>border<\/code>\u8fb9\u6846\u8272\u9ed8\u8ba4\u5c31\u662f<code>color<\/code>\u5c5e\u6027\u7684\u989c\u8272\uff0c\u56e0\u6b64\uff0c\u5199<code>border<\/code>\u65f6\u5019\uff0c\u989c\u8272\u503c\u53ef\u4ee5\u76f4\u63a5\u7f3a\u7701\uff0c\u76f4\u63a5\uff1a<\/p>\n<pre>.btn-normal { border: 1px solid; }<\/pre>\n<p>\u5bf9\u4e8e\u80cc\u666f\u8272\uff0c\u6211\u4eec\u53ef\u4ee5\u8d70CSS\u7684<code>currentColor<\/code>\u53d8\u91cf\uff0c\u5173\u4e8e<code>currentColor<\/code>\u53d8\u91cf\u53ef\u4ee5\u53c2\u89c1\u6211\u4e4b\u524d\u7684\u6587\u7ae0\uff1a\u201c<a href=\"http:\/\/www.zhangxinxu.com\/wordpress\/2014\/10\/currentcolor-css3-powerful-css-keyword\/\">currentColor-CSS3\u8d85\u9ad8\u6821\u7ea7\u597d\u7528CSS\u53d8\u91cf<\/a>\u201d\u3002<\/p>\n<pre>.btn-normal { background-color: currentColor; }<\/pre>\n<\/li>\n<li><strong>\u989c\u8272\u7c7b\u540d\u65e2\u626e\u6f14\u72b6\u6001\u7c7b\u540d\u89d2\u8272\u53c8\u626e\u6f14\u989c\u8272\u63a7\u5236\u89d2\u8272<\/strong><br \/>\nHTML\u76f4\u63a5\u53d8\u6210\u7c7b\u4f3c\u4e0b\u9762\u8fd9\u6837\uff1a<\/p>\n<pre>&lt;a href=\"\" class=\"btn-normal <span style=\"color:#cd0000;\">red<\/span>\"&gt;\u7ea2\u8272\u6309\u94ae&lt;\/a&gt;\r\n&lt;a href=\"\" class=\"btn-normal <span style=\"color:#cd0000;\">blue<\/span>\"&gt;\u84dd\u8272\u6309\u94ae&lt;\/a&gt;\r\n&lt;a href=\"\" class=\"btn-normal <span style=\"color:#cd0000;\">green<\/span>\"&gt;\u7eff\u8272\u6309\u94ae&lt;\/a&gt;<\/pre>\n<\/li>\n<li><strong>\u5927\u529f\u544a\u6210\uff01<\/strong><\/li>\n<\/ol>\n<p>\u6211\u4eec\u770b\u4e00\u4e2a\u5177\u4f53\u4f8b\u5b50\u52a0\u6df1\u7406\u89e3\uff0c\u5173\u4e8e\u5b9e\u8272\u6309\u94ae\u7684\u5b9e\u73b0\u3002\u540c\u6837\u7684\uff0c\u6211\u4eec\u6709\u4e00\u4e2a\u57fa\u7840\u7684\u7c7b\u540d\u548c\u57fa\u672c\u6837\u5f0f\uff1a<\/p>\n<pre>.btn-normal {\r\n  font-size: 14px;\r\n  line-height: 30px;\r\n  display: inline-block;\r\n  padding: 0 16px;\r\n  text-align: center;\r\n  border-radius: 2px;\r\n  <span style=\"color:#cd0000;\">background-color: currentColor;<\/span>\r\n}<\/pre>\n<p>\u6ce8\u610f\uff0c\u548c\u4f20\u7edf\u5b9e\u73b0\u4e0d\u4e00\u6837\uff0c\u6211\u4eec\u8fd9\u91cc\u76f4\u63a5\u6307\u5b9a\u4e86\u80cc\u666f\u8272\uff0c\u4f46\u662f\u662f\u4ee5<code>currentColor<\/code>\u53d8\u91cf\u7684\u5f62\u5f0f\uff0c\u4e5f\u5c31\u662f\u80cc\u666f\u8272\u548c\u6211\u4eec\u7684\u6587\u5b57\u989c\u8272\u4fdd\u6301\u4e00\u81f4\u3002<\/p>\n<p>\u4ec0\u4e48\uff1f\u80cc\u666f\u8272\u548c\u6211\u4eec\u7684\u6587\u5b57\u989c\u8272\uff01\u90a3\u5c82\u4e0d\u662f\u6309\u94ae\u6587\u5b57\u989c\u8272\u548c\u80cc\u666f\u8272\u6df7\u5728\u4e00\u8d77\uff0c\u770b\u4e2a\u6bdb\u554a\uff01<\/p>\n<p>\u6ca1\u9519\uff0c\u6309\u94ae\u7684\u6587\u5b57\u989c\u8272\u786e\u5b9e\u4e0d\u80fd\u548c\u80cc\u666f\u8272\u4e00\u6837\uff0c\u4f46\u662f\uff0c\u7531\u4e8e\u901a\u5e38\u6309\u94ae\u4e0a\u7684\u6587\u5b57\u90fd\u53ea\u6709\u4e00\u884c\uff0c\u4e8e\u662f\uff0c\u6ce8\u610f\uff0c\u672c\u6587\u6700\u7cbe\u534e\u90e8\u5206\u6765\u4e86\u2014\u2014\u8003\u8651\u5230\u6309\u94ae\u4e0a\u7684\u6587\u5b57\u90fd\u662f\u767d\u8272\uff0c\u56e0\u6b64\u6211\u4eec\u53ef\u4ee5\u8fd9\u6837\u5904\u7406\uff1a<\/p>\n<pre>.btn-normal::first-line {\r\n  color: #fff;\r\n}<\/pre>\n<p>\u5229\u7528<code>::first-line<\/code>\u4f2a\u5143\u7d20\uff0c\u4e8e\u662f\uff0c<code>.btn-normal<\/code>\u6807\u7b7e\u4e0a\u7684\u989c\u8272\u5b9e\u9645\u4e0a\u662f\u8bbe\u7f6e\u7ed9<code>background-color<\/code>\u7684\uff0c\u800c\u771f\u6b63\u6309\u94ae\u5448\u73b0\u7684\u989c\u8272\u5df2\u7ecf\u88ab<code>::first-line<\/code>\u4f2a\u5143\u7d20\u7262\u7262\u8bbe\u7f6e\u597d\u4e86\uff0c\u5b8c\u5168\u5c31\u4e0d\u7528\u62c5\u5fc3\u6587\u5b57\u989c\u8272\u548c\u80cc\u666f\u8272\u6df7\u5728\u4e00\u8d77\u7684\u60c5\u51b5\u4e86\u3002<\/p>\n<p>\u4e8e\u662f\u4e4e\uff0c\u914d\u5408\u57fa\u7840\u989c\u8272\u7c7b\u540d\uff0c\u5404\u79cd\u989c\u8272\u6309\u94ae\u5168\u90e8\u90fd\u51fa\u6765\u4e86\u3002<\/p>\n<p>\u8981\u5b9e\u73b0\u8bbe\u8ba1\u5e08\u8bbe\u8ba1\u7684\u7eff\u8272\u548c\u7ea2\u8272\u6309\u94ae\uff0c\u76f4\u63a5HTML\uff1a<\/p>\n<pre>&lt;a href=\"#\" class=\"btn-normal <span style=\"color:#cd0000;\">green<\/span>\"&gt;\u7eff\u8272\u6309\u94ae&lt;\/a&gt;\r\n&lt;a href=\"#\" class=\"btn-normal <span style=\"color:#cd0000;\">red<\/span>\"&gt;\u7ea2\u8272\u6309\u94ae&lt;\/a&gt;\r\n<\/pre>\n<p>\u540e\u6765\uff0c\u8bbe\u8ba1\u5e08\u7a81\u7136\u53d1\u73b0\u8fd9\u4e24\u8005\u989c\u8272\u6309\u94ae\u4e0d\u591f\u7528\uff0c\u53c8\u8bbe\u8ba1\u4e86\u4e00\u6b3e\u540c\u5c3a\u5bf8\u7684\u84dd\u8272\u6309\u94ae\uff0c\u5982\u679c\u662f\u4f20\u7edf\u5b9e\u73b0\uff0c\u90a3\u5fc5\u987b\u8981\u5206\u522b\u7ed9\u5b9e\u8272\u6309\u94ae\u548c\u7ebf\u6846\u6309\u94ae\u91cd\u65b0\u8d77\u4e2a\u547d\u540d\uff0c\u800c\u4e14\u8981\u5728CSS\u4ee3\u7801\u4e2d\u7ee7\u7eed\u6dfb\u52a0\u76f8\u5173\u7684\u80cc\u666f\u8272\u548c\u8fb9\u6846\u8272\u6837\u5f0f\u4ee3\u7801\uff0c\u4f60\u8bf4\u70e6\u4e0d\u70e6\u554a\uff01\u5982\u679c\u662f\u57fa\u4e8e<code>color<\/code>\u5c5e\u6027\u5b9e\u73b0\uff0c\u6211\u53bb\uff0c\u5de5\u4f5c\u91cf\u4e0d\u8981\u592a\u8f7b\u677e\uff0c\u76f4\u63a5HTML\u52a0\u4e2a<code>blue<\/code>\u7c7b\u540d\u5c31\u53ef\u4ee5\u4e86\uff1a<\/p>\n<pre>&lt;a href=\"#\" class=\"btn-normal <span style=\"color:#cd0000;\">blue<\/span>\"&gt;\u84dd\u8272\u6309\u94ae&lt;\/a&gt;<\/pre>\n<p>\u6ca1\u9519\uff0c\u7ed3\u675f\u4e86\uff0cCSS\u6587\u4ef6\u90fd\u4e0d\u9700\u8981\u6253\u5f00\u4e86\uff0c\u5b9e\u9645\u4e0a\uff0c\u4e00\u4e2a\u57fa\u7840\u6309\u94ae\u6837\u5f0f\u5199\u597d\uff0c\u5176\u5b9e\u7b49\u540c\u4e8e\u6240\u6709\u989c\u8272\u7684\u6309\u94ae\u5168\u90e8\u90fd\u5199\u597d\u4e86\u3002<\/p>\n<p>\u8fd9\u5b70\u4f18\u5b70\u52a3\u660e\u773c\u4eba\u4e00\u770b\u5c31\u770b\u5f97\u51fa\u6765\u4e86\u3002<\/p>\n<p>\u800c\u4e14\uff0c\u6700\u6700\u5173\u952e\u7684\u662f\uff0c\u8fd9\u7a0d\u5fae\u6709\u70b9\u5206\u91cf\u7684\u9879\u76ee\u4e2d\u7684\u9759\u6001UI\u7ec4\u4ef6\u53ef\u4e0d\u6b62\u6309\u94ae\u8fd9\u4e00\u79cd\u554a\uff01<\/p>\n<p>\u5404\u79cd\u989c\u8272\u6587\u5b57\u672c\u8d28\u4e5f\u662fUI\u7ec4\u4ef6\uff0c\u7136\u540e\uff0c\u5404\u79cd\u7b49\u7ea7\u6807\u7b7e\uff0c\u8363\u8a89\u6807\u7b7e\uff0c\u7279\u6b8a\u6309\u94ae\uff0c\u8fd8\u6709\u6a21\u62df\u63a7\u4ef6\u554a\uff0c\u7b49\u7b49\u3002<\/p>\n<p>\u5982\u679c\u6240\u6709\u7684\u8fd9\u4e9b\u9759\u6001UI\u7ec4\u4ef6\u5168\u90e8\u90fd\u91c7\u7528\u57fa\u4e8e<code>color<\/code>\u5c5e\u6027\u5b9e\u73b0\u7684\u7b56\u7565\uff0c\u90a3\u8fd9\u4e9b\u989c\u8272\u5c31\u6210\u4e3a\u4e86\u771f\u6b63\u610f\u4e49\u4e0a\u7684\u8d2f\u7a7f\u6574\u4e2a\u9879\u76ee\u7684\u989c\u8272\u53d8\u91cf\u4e86\uff0c\u8fd9\u65e5\u540e\u7684\u7ef4\u62a4\u6210\u672c\u662f\u5927\u5927\u7684\u964d\u4f4e\uff0c\u5c24\u5176\u5728\u6ca1\u6709\u4f7f\u7528Sass\uff0cLess, <a href=\"http:\/\/www.zhangxinxu.com\/wordpress\/2012\/06\/stylus-nodejs-expressive-dynamic-robust-css\/\">Styus<\/a>\u8fd9\u4e9b\u9884\u7f16\u8bd1\u5de5\u5177\u7684\u60c5\u51b5\u4e0b\u3002<\/p>\n<p>\u5e76\u4e14\uff0cCSS\u4e66\u5199\u7684\u5de5\u4f5c\u91cf\u4ee5\u53caCSS\u4ee3\u7801\u91cf\u90a3\u90fd\u662f\u660e\u663e\u4e0b\u964d\u554a\uff0c\u5e76\u4e14HTML\u5c42\u9762\u4ee3\u7801\u66f4\u52a0\u7cbe\u7b80\u76f4\u767d\uff0c\u8d85\u597d\u8bb0\u5fc6\u3002\u8981\u77e5\u9053\uff0cHTML\u4ee3\u7801\u540e\u671f\u5f80\u5f80\u53ef\u80fd\u5c31\u662f\u5f00\u53d1\u4eba\u5458\u7ef4\u62a4\u4e86\uff0c\u9664\u975e\u4f60\u6587\u6863\u5199\u5f97\u597d\uff0c\u5426\u5219\u5f00\u53d1\u4eba\u5458\u600e\u4e48\u77e5\u9053\u6309\u94ae\u6362\u4e2a\u989c\u8272\u8981\u600e\u4e48\u529e\uff1f\u4f46\u662f\u4f60\u8d70\u989c\u8272\u5173\u952e\u5b57\u7684\u72ec\u7acb\u7c7b\u540d\uff0c\u5b8c\u5168\u4e0d\u4f1aCSS\u7684\u5f00\u53d1\u4eba\u5458\u4ed6\u4e5f\u80fd\u8f7b\u677e\u7ef4\u62a4\u554a\u3002<\/p>\n<p>\u603b\u800c\u8a00\u4e4b\uff0c\u5404\u79cd\u723d\u5404\u79cd\u8212\u7545\uff01<\/p>\n<p>\u5173\u4e8e\u57fa\u4e8e<code>color<\/code>\u5c5e\u6027\u5b9e\u73b0\u5404\u7c7b\u9759\u6001UI\u7ec4\u4ef6\uff0c\u6211\u7279\u610f\u6574\u7406\u4e86\u4e00\u4e2a\u5b8c\u6210\u7684\u5927demo\uff0c\u5747\u662f\u6e90\u81ea\u771f\u5b9e\u7684\u9879\u76ee\uff0c\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1a<a href=\"http:\/\/www.zhangxinxu.com\/study\/201611\/static-ui-components-base-on-color.html\" target=\"_blank\">\u57fa\u4e8eCSS color\u5c5e\u6027\u7684\u9759\u6001UI\u7ec4\u4ef6\u5f00\u53d1demo<\/a><\/p>\n<p>\u51e0\u4e2a\u989c\u8272\u7c7b\u540d\u641e\u5b9a\u4e86\u4e0b\u976230\u591a\u4e2a\u4e0d\u540c\u989c\u8272\u4e0d\u540c\u98ce\u683c\u7684\u9759\u6001UI\u63a7\u4ef6\uff0c\u53ef\u4ee5\u8bf4\u5c11\u4e86\u4e0a\u767e\u884cCSS\u4ee3\u7801\u90fd\u4e0d\u4e3a\u8fc7\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201611\/2016-11-18_003648.png\" width=\"504\" height=\"524\" alt=\"\u57fa\u4e8ecolor\u5b9e\u73b0\u7684\u989c\u8272\u63a7\u4ef6\" class=\"alignnone\" \/><\/p>\n<p>\u6700\u540e\uff0c\u518d\u63d0\u4e00\u53e5\uff0c\u672c\u7b56\u7565\u80fd\u591f\u5b9e\u73b0\u7684\u91cd\u70b9\u6280\u5de7\u5c31\u662f\u5229\u7528<code>::first-line<\/code>\u4f2a\u5143\u7d20\u7684\u6587\u5b57\u63a7\u8272\u6280\u672f\u3002<\/p>\n<p><strong>\u66f4\u65b0\u4e0e2020-06-14<\/strong><\/p>\n<p>Chrome <code>::first-line<\/code> <code>inline-block<\/code>\u5143\u7d20\u5f71\u54cdcolor\u8272\u503c\u7684bug\u4e00\u76f4\u6ca1\u6709\u4fee\u590d\u3002<\/p>\n<p>\u6240\u4ee5\uff0c\u8fd9\u91cc\u7684\u5b9e\u73b0\u8c03\u6574\u4e0b\uff0c\u4f18\u5148\u4f7f\u7528<code>-webkit-text-fill-color<\/code>\u5c5e\u6027\u6539\u53d8\u6587\u5b57\u663e\u793a\u7684\u989c\u8272\u3002<\/p>\n<h3>\u4e09\u3001\u6280\u672f\u53d1\u5c55\u4e0e\u601d\u7ef4\u8f6c\u6362<\/h3>\n<p>\u6280\u672f\u7684\u53d1\u5c55\u5f80\u5f80\u4f1a\u5e26\u6765\u76f8\u5e94\u7684\u601d\u7ef4\u65b9\u5f0f\u4e0a\u7684\u8f6c\u53d8\uff0c\u8fd9\u6837\u624d\u80fd\u76f8\u8f85\u76f8\u6210\uff0c\u53d1\u6325\u65b0\u6280\u672f\u7684\u6f5c\u529b\uff0c\u5982\u679c\u8fd8\u662f\u4f7f\u7528\u4ee5\u524d\u7684\u601d\u7ef4\u6a21\u5f0f\uff0c\u600e\u4e48\u8bf4\u5462\uff0c\u6709\u7740\u52b3\u65af\u83b1\u65af\u52a0\u774092#\u6c7d\u6cb9\u5728\u8dd1\u7684\u611f\u89c9\u3002<\/p>\n<p>weui\u4e2d\u6309\u94ae\u7684CSS\u4e66\u5199\u5c31\u662f\u5178\u578b\u7684\u4f20\u7edf\u5b9e\u73b0\u7b56\u7565\uff0c\u624e\u5b9e\u800c\u7a33\u56fa\uff0c\u4f20\u7edf\u6700\u4f73\u5b9e\u8df5\u7684\u9057\u7559\u4ea7\u7269\u3002<\/p>\n<p>\u56e0\u4e3a\u6bd5\u7adfPC\u662f\u5148\u53d1\u5c55\u7684\uff0c\u7531\u4e8e\u6280\u672f\u7684\u9650\u5236\uff0c\u6211\u4eec\u7684\u601d\u7ef4\u4e5f\u88ab\u9650\u5236\u4e86\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u7531\u4e8eIE6\u6d4f\u89c8\u5668\u5bf9<code>.a.b<\/code>\u8fd9\u79cd\u7ea7\u8054\u7c7b\u540d\u6837\u5f0f\u652f\u6301\u6709\u4e25\u91cdbug\uff0c\u540c\u65f6\u8003\u8651\u5230\u5176\u6548\u7387\u5728\u9009\u62e9\u5668\u4e2d\u6392\u5f88\u540e\uff0c\u56e0\u6b64\uff0c\u5f88\u957f\u4e00\u6bb5\u65f6\u95f4\u91cc\uff0c\u6211\u4eec\u5bf9\u4e8e\u6309\u94ae\u7684\u6837\u5f0f\u7684\u8986\u76d6\u7b56\u7565\u90fd\u4e0d\u662f\u57fa\u4e8e\u72b6\u6001\uff0c\u800c\u662f\u57fa\u4e8e\u5b8c\u6574\u7684\u6309\u94ae\u7c7b\u540d+\u72b6\u6001\u7c7b\u540d\u7684\u8fd9\u79cd\u65b9\u5f0f\uff0c\u56e0\u4e3a\u53ef\u4ee5\u5f88\u597d\u5730\u652f\u6301IE6\uff0c\u4e14\u51e0\u4e4e\u4e0d\u53ef\u80fd\u53d1\u751f\u51b2\u7a81\u3002<\/p>\n<p>\u653e\u5230\u663e\u793a\u4e16\u754c\uff0c\u5927\u90e8\u5206\u7684\u9879\u76ee\u90fd\u662f\u81ea\u6210\u4f53\u7cfb\uff0c\u4e0d\u4f1a\u548c\u5176\u4ed6\u9879\u76ee\u76f4\u63a5\u53c2\u6742\u5728\u4e00\u8d77\uff0c\u56e0\u6b64\uff0c\u53ef\u4ee5\u9002\u5f53\u964d\u4f4e\u8003\u8651\u51b2\u7a81\u7684\u98ce\u9669\uff1b\u7b2c\u4e8c\uff0c\u5f88\u591a\u9879\u76ee\u5199\u9875\u9762\u7684\u5c31\u4e00\u4e2a\u4eba\uff0c\u7531\u4e8e\u4e0d\u8981\u62c5\u5fc3\u4f1a\u9047\u5230\u9ec4\u6cb9\u624b\u540c\u4e8b\uff0c\u6240\u4ee5\uff0c\u53ea\u8981\u81ea\u5df1\u4e25\u683c\u6309\u7167\u51c6\u5219\u6765\u4e66\u5199\uff0c\u5219\u7b80\u5355\u7684\u4ee3\u7801\u548c\u5feb\u901f\u7684\u4e66\u5199\u5e26\u6765\u7684\u6536\u76ca\u4f1a\u66f4\u9ad8\u3002<\/p>\n<p>\u518d\u4f8b\u5982\uff0c\u7531\u4e8e<code>currentColor<\/code>\u53d8\u91cfIE9\u6d4f\u89c8\u5668\u624d\u652f\u6301\uff0c\u6240\u4ee5\uff0c\u957f\u671f\u7684PC\u9879\u76ee\u5f00\u53d1\u5e76\u6ca1\u6709\u8ba9\u91cd\u6784\u540c\u5b66\u610f\u8bc6\u5230\u6211\u4eec\u73b0\u5728\u518d\u505a\u79fb\u52a8\u7aef\u9879\u76ee\u7684\u65f6\u5019\uff0c\u53ef\u4ee5\u76f4\u63a5\u901a\u8fc7\u4e00\u4e2a<code>color<\/code>\u5c5e\u6027\uff0c\u6539\u53d8\u6309\u94ae\u6216\u8005\u56fe\u6807\u6216\u8005\u6807\u7b7e\u7684\u989c\u8272\u800c\u6837\u5f0f\u4e0d\u4e71\u3002\u5982\u679c\u8fd9\u4e2a\u4e16\u754c\u5148\u51fa\u73b0\u79fb\u52a8\u7aef\uff0c\u518d\u51fa\u73b0PC\u7aef\uff0c\u6211\u60f3\uff0c\u6211\u4eec\u9759\u6001UI\u7ec4\u4ef6\u7684\u4e66\u5199\u7b56\u7565\u53ef\u80fd\u5c31\u4f1a\u5982\u672c\u6587\u6240\u8a00\uff0c\u57fa\u4e8e<code>color<\/code>\u5c5e\u6027\u7684\u7cfb\u7edf\u548c\u8d2f\u7a7f\u4e66\u5199\uff0c\u800c\u975e\u6765\u4e00\u67aa\u6253\u4e00\u70ae\u7684\u8fd9\u79cd\u6e38\u51fb\u7b56\u7565\u3002<\/p>\n<p>\u6362\u53e5\u8bdd\u8bf4\uff0c\u867d\u7136CSS3\u6280\u672f\u5e26\u6765\u4e86\u5f88\u591a\u5f88\u68d2\u7684\u4e1c\u897f\uff0c\u4f46\u662f\uff0c\u6211\u4eec\u7684\u601d\u7ef4\u65b9\u5f0f\u5374\u4f3c\u4e4e\u8fd8\u505c\u7559\u5728\u8001PC\u65f6\u4ee3\uff0c\u6216\u8bb8\u662f\u56e0\u4e3a\u5173\u6ce8\u7684\u4ec5\u4ec5\u662fCSS3\u8868\u9762\u7684\u90a3\u70b9\u7279\u6027\u8868\u73b0\u7684\u7f18\u6545\u5427\u3002<\/p>\n<h3>\u56db\u3001\u57fa\u4e8eCSS color\u91cd\u6784UI\u7ec4\u4ef6\u9002\u7528\u9879\u76ee\u548c\u573a\u666f<\/h3>\n<p>\u6ca1\u6709\u54ea\u4e00\u79cd\u7b56\u7565\u662f\u4e00\u65b9\u901a\u884c\u7684\uff0c\u672c\u6587\u7684<code>color<\/code>\u7b56\u7565\u867d\u7136\u7cbe\u5999\u4e14\u597d\u5904\u591a\u591a\uff0c\u4f46\u540c\u6837\u6709\u5176\u5c40\u9650\u6027\u3002<\/p>\n<p>\u9996\u5148\u662f<strong>\u517c\u5bb9\u6027\u9650\u5236<\/strong>\uff0c\u6280\u672f\u5173\u952e\u70b9\u4e4b\u4e00<code>currentColor<\/code> IE9+\u6d4f\u89c8\u5668\u624d\u652f\u6301\uff0c\u56e0\u6b64\uff0c\u76ee\u524d\u9002\u7528\u4e8e\u79fb\u52a8\u7aef\u5f00\u53d1\uff0c\u4ee5\u53ca\u4e00\u4e9b\u4e0d\u9700\u8981\u7ba1\u4f4e\u7248\u672cIE\u6d4f\u89c8\u5668\u7684\u9879\u76ee\u3002\u867d\u7136\u6d4f\u89c8\u5668\u7684\u8fdb\u6b65\uff0c\u76f8\u4fe1\u4e0d\u9700\u8981\u591a\u4e45\uff0cPC\u9879\u76ee\u4e5f\u80fd\u770b\u5230\u8fd9\u79cd\u7b56\u7565\u7684\u6162\u6162\u666e\u53ca\u3002<\/p>\n<p>\u5176\u6b21\uff0c<strong>\u4e0d\u9002\u7528\u4e8e\u5f00\u6e90\u9879\u76ee<\/strong>\u3002\u5f00\u6e90\u610f\u5473\u7740\u4f1a\u548c\u5176\u4ed6\u4f17\u591a\u4f7f\u7528\u8005\u7684\u9879\u76ee\u6df7\u5728\u4e00\u8d77\uff0c\u6211\u4eec\u81ea\u5df1\u56e2\u961f\u4e2d\u5f00\u53d1\uff0c\u81ea\u7136\u4f1a\u6709\u89c4\u8303\u7ea6\u675f\uff0c\u4f46\u662f\u4e00\u65e6\u9c7c\u9f99\u6df7\u6742\u5728\u4e00\u8d77\uff0c\u5219\uff0c\u7c7b\u4f3c<code>.red<\/code>\u8fd9\u6837\u7684\u77ed\u547d\u540d\u7c7b\u540d\u5f88\u5bb9\u6613\u88ab\u5176\u4ed6\u6837\u5f0f\u4e2d<code>.red<\/code>\u7c7b\u540d\u7ed9\u51b2\u6389\u3002\u56e0\u6b64\uff0c\u4ece\u8fd9\u4e00\u70b9\u6765\u770b\uff0cweui\u7684\u5b9e\u73b0\u7b56\u7565\u5b9e\u9645\u4e0a\u662f\u6700\u5408\u9002\u7684\uff0c\u4f7f\u7528\u672c\u6587\u7684<code>color<\/code>\u5c5e\u6027\u7b56\u7565\u53cd\u800c\u4f1a\u5bb9\u6613\u88ab\u63d0issues\uff0c\u4f46\u662f\uff0c\u7ec6\u8282\u4e0a\u53ef\u4ee5\u518d\u5b8c\u5584\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>.weui-btn_plain-default {\r\n    color: #353535;\r\n    border: 1px solid #353535;\r\n}\r\n.weui-btn_plain-primary {\r\n    color: #1aad19;\r\n    border: 1px solid #1aad19;\r\n}<\/pre>\n<p>\u53ef\u4ee5\u76f4\u63a5\u5199\u6210\uff1a<\/p>\n<pre>.weui-btn_plain-default {\r\n    color: #353535;\r\n    border: 1px solid;\r\n}\r\n.weui-btn_plain-primary {\r\n    color: #1aad19;\r\n    border: 1px solid;\r\n}<\/pre>\n<p>\u7ee7\u800c\uff0c<code>border:1px solid<\/code>\u53ef\u4ee5\u653e\u5728\u57fa\u7840\u6837\u5f0f\u4e2d\uff0c\u56e0\u6b64\uff0cCSS\u8fdb\u4e00\u6b65\u7f29\u51cf\u4e3a\uff1a<\/p>\n<pre>.weui-btn_plain-default {\r\n    color: #353535;\r\n}\r\n.weui-btn_plain-primary {\r\n    color: #1aad19;\r\n}<\/pre>\n<p>\u770b\u5230\u6ca1\uff0c\u672c\u8d28\u4e0a\u5c31\u662f\u4e2a<code>dark<\/code>\u548c<code>green<\/code>\u4e24\u4e2a\u989c\u8272\u7c7b\u540d\u3002<\/p>\n<p><strong>\u8865\u5145\u4e8e\u7fcc\u65e5<\/strong><br \/>\n\u8bc4\u8bba\u6709\u4eba\u63d0\u5230\uff0c\u5982\u679c\u65e5\u540e\u6309\u94ae\u8981\u4ece\u84dd\u8272\u53d8\u6210\u7eff\u8272\uff0c\u73b0\u5728\u7684\u547d\u540d\u4f1a\u5f88\u9ebb\u70e6\uff0c\u6837\u5f0f\u548c\u8bed\u4e49\u4e0d\u5408\uff0c\u867d\u7136\u6211\u5199\u9875\u9762\u8fd9\u4e48\u591a\u5e74\uff0c\u6ca1\u9047\u5230\u8fc7\u7c7b\u4f3c\u7684\u53d8\u66f4\uff0c\u4f46\u662f\uff0c\u96be\u4fdd\u5176\u4ed6\u9879\u76ee\u4e0d\u4f1a\uff0c\u56e0\u6b64\uff0c\u5bf9\u4e8e\u6309\u94ae\u7684\u547d\u540d\uff0c\u8fd8\u662f\u57fa\u4e8e\u72b6\u6001\u6bd4\u8f83\u4fdd\u9669\uff0c\u6216\u8005\u4f7f\u7528\u6bd4\u8f83\u9690\u6666\u7684\u547d\u540d\uff0c\u4f8b\u5982<code>primary<\/code>, <code>default<\/code>\u7b49\uff0c\u4f46\u662f\uff0c\u6837\u5f0f\u8fd9\u5757\u8fd8\u662f\u4f7f\u7528\u989c\u8272\u63a7\u5236\uff0c\u4e24\u8005\u5e76\u4e0d\u51b2\u7a81\u3002<\/p>\n<p>\u4f8b\u5982(Sass)\uff1a<\/p>\n<pre>.primary {\r\n    @extend .green;\r\n}<\/pre>\n<p>\u6216\u8005\uff1a<\/p>\n<pre>.green,\r\n.primary {\r\n   color: ...; \r\n}<\/pre>\n<p>\u4f46\uff0c\u5bf9\u4e8e\u5f88\u591a\u4e2a\u989c\u8272\u79cd\u7c7b\u7684\u6807\u7b7e\uff0c\u663e\u7136\uff0c\u8fd8\u662f\u57fa\u4e8e\u989c\u8272\u5904\u7406\u6700\u4f73\uff0c\u5426\u5219\uff0c\u4f60\u5149\u60f3\u547d\u540d\u5c31\u8981\u5934\u75bc\u597d\u4e00\u4f1a\u554a\uff0c\u6700\u540e\uff0c\u5f80\u5f80\u662f<code>*-1<\/code>,<code>*-2<\/code>,<code>*-3<\/code>&#8230;\u6536\u573a\uff0c\u9b3c\u77e5\u9053<code>1<\/code>,<code>2<\/code>,<code>3<\/code>\u5bf9\u5e94\u7684\u662f\u4ec0\u4e48\u6807\u7b7e\u3002<\/p>\n<p>\u8bc4\u8bba\u8fd8\u6709\u4eba\u8be2\u95ee<code>hover<\/code>\u6001\u548c<code>active<\/code>\u6001\u8be5\u5982\u4f55\u5904\u7406\uff0c\u5176\u5b9edemo\u9875\u9762\u7684\u6309\u94ae\u90a3\u91cc\u6709\u793a\u610f\uff0c\u53ef\u4ee5\u4f7f\u7528<code>box-shadow<\/code>\u5185\u9634\u5f71\uff0c\u6216\u8005\u4f7f\u7528<code>background-image<\/code>\u6e10\u53d8\uff0c\u5982\u4e0bCSS\uff1a<\/p>\n<pre>.btn-normal:active {\r\n  background-image: linear-gradient(to top, rgba(0, 0, 0, .05), rgba(0, 0, 0, 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loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201608\/doge.gif\" width=\"22\" height=\"22\" class=\"alignnone\" \/><\/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 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