<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default3.aspx.vb" Inherits="Default3" %> 无标题页 <br> * { <br> margin:0;<br> padding:0;<br> font-size:1em;<br> }<br> <br> #header {<br> width:800px;<br> height:100px;<br> margin:0 auto;<br> }<br> #divall {<br> width:800px;<br> margin:0 auto;<br> background:#06f;<br> height:300px;<br> }<br> #footer {<br> width:800px;<br> height:60px;<br> margin:0 auto;<br> background:#999;<br> clear:both;<br> } <br> #sider_a{<br> width:200px;<br> float:left;<br> background:#f93;<br> } <br> #main{<br> float:left;<br> background:#dceafc;<br> margin-left:5px;<br> width:500px;<br> }<br> #sider_b{<br> float:right;<br> width:90px;<br> background:#ccc;<br> }<br> sdfsdf sdfsdf sdf sdfsdf sdfsdfsfsdf http://www.52css.com/article.asp?id=574