<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style type="text/css">
*{
margin: 0;
padding: 0;
}
html{
overflow: hidden;
height: 100%;
}
body{
overflow: auto;
height: 100%;
}
#test{
position: absolute;
left: 50px;
top: 50px;
width: 100px;
height: 100px;
background: pink;
}
</style>
</head>
<body>
<div id="test">
</div>
<div style="height: 1000px;">
csjkahcjk <br />
csjkahcjk <br />
csjkahcjk <br />
csjkahcjk <br />
csjkahcjk <br />
csjkahcjk <br />
csjkahcjk <br />
csjkahcjk <br />
</div>
</body>
</html>
原文：https://www.cnblogs.com/hack-ing/p/11751530.html