<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>按钮</title>
<style type="text/css">
/* 未访问过的超链接 /
.btn:link{
display: block;
width: 93px;
height: 29px;
background-image: url(./img/btn.png);
/ background-repeat: no-repeat; /
}
.btn:hover{
background-position: -93px 0px;
}
/ 背景定位 */
.btn:active{
background-position: -186px 0px;
}
</style>
</head>
<body>
<a href="#"class="btn"></a>
</body>
</html>
按钮.png
按钮按下.png
