<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title></title>
<style>
.container{
width: 800px;
height: 1000px;
background: #4c77f2;
margin: 0 auto;
padding-top: 40px;
text-align: center;
position: absolute;
top:40px;
}
.header{
width:100%;
position: fixed;
height: 40px;
background: #414141;
text-align: center;
font-size: 16px;
line-height: 40px;
}
</style>
</head>
<body>
<div class="header">这是页面头部</div>
<div class="container">
这是页面内容
</div>
</body>
</html>
慕瓜9220888
李晓健
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