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<!doctype html>
<HTML>
<head>
<title>一个按钮CSS3 返回按钮</title>
<style>
.kele:before{ position: absolute; content: " "; border: transparent 14px solid; border-width: 13px 8px ; border-right-color:
#CCC; top: 1px; left: -16px; height: 0; width: 0; }
.kele{ position: relative; width: 40px; height: 28px; background: #EEE; border-radius: 5px; margin: 30px; text-align: center;
line-height: 28px; color: #999; font-size: 14px; border: 1px solid #CCC; }
.kele:after{ position: absolute; content: " "; border: transparent 13px solid; border-width: 12px 8px; border-right-color:
#EEE; top: 2px; left: -15px; height: 0; width: 0; }
</style>
</head>
<body>
<div>http://www.999jiujiu.com/</div>
<div class="kele">返回</div>
</body>
</html>
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原文地址：http://www.cnblogs.com/life6688/p/4524167.html
