下划线跟随导航
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<script type="text/javascript" src="js/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">4399小游戏</li>
<li name="3">酷狗</li>
<li name="4">倚天屠龙记</li>
</ul>
<div class="block" style="z-index:10;width:100px;height:2px;background:#fff;position:absolute;top:30px;"></div>
</div>
</body>
</html>