<!DOCTYPE html>
<html>
<head>
<title>圆角水平菜单</title>
<meta charset="utf-8">
<style type="text/css">
*{margin: 0;padding: 0;font-size: 14px;}
ul{list-style: none;height: 50px;border-bottom: 5px solid #F60;padding-left: 30px;}
li{float: left;margin-top:20px; }
a{text-decoration: none;display: block;height: 30px;line-height: 30px; 120px;background-color: #ccc;margin-bottom: 1px;text-align: center;}
.on,a:hover{color: #fff;background-color:#F60;height: 30px;line-height: 30px;}
</style>
<script type="text/javascript" src="js/jquery-2.1.4.min.js"></script>
<script>
$(function(){
$("a").hover(function() {
/* Stuff to do when the mouse enters the element */
$(this).stop().animate({"width":"160px"}, 200)
}, function() {
/* Stuff to do when the mouse leaves the element */
$(this).stop().animate({"width":"120px"}, 200)
});
})
</script>
</head>
<body>
<ul>
<li><a class="on" href="#">首页</a></li>
<li><a href="#">新闻快讯</a></li>
<li><a href="#">产品展示</a></li>
<li><a href="#">售后服务</a></li>
<li><a href="#">联系我们</a></li>
</ul>
</body>
</html>