<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd“>
<html xmlns=”http://www.w3.org/1999/xhtml“>
<head>
<meta http-equiv=”Content-Type” content=”text/html; charset=gb2312″ />
<STYLE type=text/css>
<!–
#top,#left,#middle,#right,#bottom
{
background:#CCCCCC;
height:120px;
}
#top,#index,#bottom/*页面上、中、下层宽度定义*/
{
clear:both;
width:778px;
margin:4px;
margin-left:auto;/*页面中上、中、下居中*/
margin-right:auto;
}
#left{
float:left;
width:200px;
}
#middle{
float:left;
margin-left: 5px;
width: 150px;
}
#right
{
float: left;
margin-left: 5px;
width:300px;
}
–>
</STYLE>
<title>无标题文档</title>
<body>
<div id=top>顶部</div>
<div id=index>
<div id=left>中间左边</div>
<div id=middle>中间</div>
<div id=right>中间右边</div></div>
<div id=bottom>底部</div>
</div>
</body>
</html>