<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>购物车图标</title>
<style type="text/css">
.btn{
width:50px;
height:40px;
background-image:url(img/4.png);
display:block;
background-position: 0px -338px;
}
.btn:hover{
background-position: -58px -338px;
}
.btn:active{
background-position: -119px -338px;
}
</style>
</head>
<body>
<a href="#" class="btn">
</body>
</html>
