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<!DOCTYPE HTML> <html> <head> <title>margin transfer </title> <meta charset="utf-8"> <style type="text/css"> body{margin: 0;padding: 0;} .outer{width: 100px;height: 100px;background: #ccc;} .inner{width: 50px;height: 50px;background: #f00;margin-top: 30px;} </style> </head> <body> <div class="outer"> <div class="inner"></div> </div> </body> </html>
子元素的margin-top和margin-bottom影响父元素定位的原因和解决方法
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原文地址:http://www.cnblogs.com/happyfreelife/p/4242538.html