background-attachment:scroll
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style type="text/css">
*{
margin: 0;
padding: 0;
}
-sharptest{
width: 400px;
height: 400px;
background-image:url(https://ss1.baidu.com/6ONXsjip0QIZ8tyhnq/it/u=1170950161,2411404899&fm=173&app=25&f=JPEG?w=218&h=146&s=11E441A7520B2CE46C8C0DB90300E013);
background-repeat:no-repeat ;
background-attachment:scroll ;
overflow: auto;
}
</style>
</head>
<body>
<div id="test">
1 <br>1 <br>1 <br>1 <br>1 <br>1 <br>1 <br>1 <br>1 <br>1 <br>1 <br>1 <br>1 <br>1 <br>1 <br>1 <br>1 <br>1 <br>1 <br>1 <br>1 <br>1 <br>1 <br>1 <br>
</div>
</body>
</html>
