<head>
<style type="text/css">
body {color:#00F}
???body {color:#000000;font-weight:normal;}
???.c1{background-color:#FF3333;color:#000000;font-size:200%;font-weight:bold;text-align: left;}
???.c2{background-color: FFFFFF;color:#000000;font-size:180%;font-weight:bold;text-align: left;}
???.c3{background-color:FFFFFF;color:#000000;font-size:160%;font-weight:bold;text-align: left;}
???.c4{background-color:FFFFFF;color:#000000;font-size:140%;font-weight:bold;text-align: left;}
???p,a{color:#000000;font-weight:normal;font-size:120%;}
</style>
</head>
css格式
原文地址：https://www.cnblogs.com/wzh313/p/9124274.html