我自己写的案例
<!DOCTYPE html>
<html>
<head>
<title></title>
<meta charset="utf-8" />
<script type="text/javascript" src="jquery.js"></script>
<style type="text/css">
* {
padding: 0;
margin: 0;
}
ul {
list-style: none;
z-index: 20;
position: relative;
font-size: 15px;
}
li {
float: left;
cursor: pointer;
width: 100px;
height: 30px;
text-align: center;
line-height: 30px;
color: #fff;
font-weight: bold;
}
.menu {
width: 500px;
position: relative;
margin: 20px auto;
height: 32px;
box-shadow: 0 2px 20px #000;
background: #AF3434;
border-radius: 3px
}
</style>
<script type="text/javascript">
$(function () {
$('li').hover(
function () {
$x = parseInt($(this).attr('name')) * 100
$('.block').stop().animate({ left: $x + 'px' }, 300)
},
function () {
$('.block').stop().animate({ left: '0px' }, 300)
}
)
})
</script>
</head>
<body>
<div class="menu">
<ul>
<li name="0">首页</li>
<li name="1">php中文网</li>
<li name="2">独孤九剑</li>
<li name="3">西门大官人</li>
<li name="4">灭绝师太</li>
</ul>
<div class="block" style="z-index:10;width:100px;height:2px;background:#fff;position:absolute;top:30px;"></div>
</div>
</body>
</html>