<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>12-27作业</title>
<style type="text/css">
.box:link{
display: block;
height: 30px;
width: 42px;
margin: 50px auto;
background-repeat: no-repeat;
background-image: url(../images/amazon-sprite_.png);
/*background-color: orange;*/
background-position: -8px -338px;
}
.box:hover{background-position: -58px -338px;}
.box:active{background-position: -128px -338px;}
</style>
</head>
<body>
<a href="http://www.4399.com" class="box" target="_block"></a>
</body>
</html>
