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<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>JS Bin</title> </head> <body> <div class="div1"> <div class="div2"></div> </div> </body> </html>
.div1{ border:solid 1px red; width:100%; height:400px; position:relative; margin-top:80px; } .div2{ border:solid 1px red; width:100%; height:60px; position:absolute; margin:auto; bottom: 0; right: 0; box-sizing: border-box; border-left:none; border-right:none; border-bottom:none; }
http://jsbin.com/miciburuwo/1/
css position:absolute align center bottom
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原文地址：http://www.cnblogs.com/zyip/p/4572010.html
