5-3 这样对吗 我拉网页下来时LEFT也会掉
<!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=utf-8" />
<title>混合布局编程挑战</title>
<style type="text/css">
body{ margin:0; padding:0; font-size:30px; color:#fff}
.top{width:100%; background:#ccc;height:100px;}
.main{ height:600px; background:#F00;}
.left{ width:200px;height:600px; background:#00F;float:left;}
.right{width:85%;background:#0FF;height:600px;float:right;}
.foot{width:100%;height:50px; background:#F60; clear:both}
</style>
</head>
<body>
<div class="top">top</div>
<div class="main">
<div class="right">right</div>
<div class="left">left</div>
</div>
<div class="foot">foot</div>
</body>
</html>
