css滑动门原理
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style type="text/css">
* {
margin: 0;
padding: 0;
}
ul {
list-style: none;
}
body {
background: url(images/wx.jpg) repeat-x;
}
.nav {
height: 75px;
}
.nav li {
float: left;
margin: 0 10px;
padding-top: 21px;
}
.nav li a {
display: block;
background: url(images/to.png) no-repeat;
color: #fff;
font-size: 14px;
line-height: 33px;
padding-left: 15px;
text-decoration: none;
}
.nav li a:hover {
background-image: url(images/ao.png);
}
.nav li a:hover span { /* 鼠标经过a a里面的span 也要变换背景 */
background-image: url(images/ao.png);
}
.nav li a span {
display: block;
line-height: 33px;
background: url(images/to.png) no-repeat right center;
padding-right: 15px;
}
</style>
</head>
<body>
<div class="nav">
<ul>
<li>
<a href="#">
<span>首页</span>
</a>
</li>
<li>
<a href="#">
<span>帮助与反馈</span>
</a>
</li>
<li>
<a href="#">
<span>公众平台</span>
</a>
</li>
<li>
<a href="#">
<span>帮助与反馈</span>
</a>
</li>
<li>
<a href="#">
<span>帮助与反馈</span>
</a>
</li>
</ul>
</div>
</body>
</html>
