要写一个HTML页面，其中有6个
<div class="d1"></div><div class="dc"><div class="d2"></div><div class="d3"></div></div><div class="dc"><div class="d4"></div><div class="d5"></div></div><div class="d6"></div><style> *{margin:0px;padding:0px;} div{border:5px solid #000;margin-top:10px;} .dc{border:none;} .d1,.d6{width:500px;height:80px;} .dc div{float:left;width:200px;height:100px;} .d3,.d5{margin-left:90px;} .dc:after{display: block;content: '';clear: both;visibility: hidden; }</style> 经过测试，在IE7下，楼上的代码显示如图
修改如下：
<html><head> <style> *{margin:0px;padding:0px;} div{border:5px solid #000;margin-top:10px;} .dc{border:none;width:600px;} .d1,.d6{width:500px;height:50px;} .dc div{float:left;width:200px;height:100px;} .d3{margin-left:90px;} .dc .d4,.dc .d5{width:220px;} .d5{margin-left:50px;} .dc:after{display: block;content: '';clear: both;visibility: hidden; } </style></head><body><div class="d1">div_01</div><div class="dc"> <div class="d2">div_02</div> <div class="d3">div_03</div></div><div class="dc"> <div class="d4">div_04</div> <div class="d5">div_05</div></div><div class="d6">div_06</div></body></html>这个很简单吧
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