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
