<!DOCTYPE html>
<html lang="en">
<meta charset="UTF-8">
<title>购物车图
<style type="text/css">
.btn{width: 50px;
height: 40px;
display: block;
background-image: url(img/gouwc.png);
background-repeat: no-repeat;
background-position:0px -338px;}
.btn:hover{background-position:-59px -338px;}
.btn:active{background-position:-119px -338px;}
<a href="#" class="btn">
</html>
