顶部没布局
顶部没布局
<!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>无标题文档</title>
<style type="text/css">
body{margin:0;padding:0}
.top{height:100;background:#363;}
.main{width:800px;height:300px;background:#CCC;margin: 0 auto}
.foot{width:800px;height:100px;background:#C96;margin:0 auto}
</style>
</head>
<body>
<div class"top">1</div>
<div class="main">2</div>
<div class="foot">3</div>
</body>
</html>
