<!DOCTYPE html>
<html>
<head>
<title>单列布局</title>
<style type="text/css">
body{
margin: 0;padding: 0;
}
.header{
height: 100px;
width:800px;background: blue;
}
.main{
width: 800px;height: 300px;background: #ccc; margin: 0 auto;
}
.foot{
width: 800px;height: 100px;
background: #c00;margin: 0 auto;
}
</style>
</head>
<body>
<div class="header"></div>
<div class="main"></div>
<div class="foot"></div>
</body>
</html>
时间： 2024-08-18 14:12:21