复制代码代码如下:
* {
margin: 0;
padding: 0;
}
span {
display: block;
width: 30px;
height: 30px;
padding-left: 30px;
background-image: url(http://images.cnitblog.com/blog/294743/201304/21141707-77236dc5976d4f7db624bf3a5d2eee28.gif);
background-repeat: no-repeat;
background-position: 0 -3px;
}
span span span span span {
padding-left: 0;
}
span:hover {
background-position: 0 -31px;
}
效果如下
