<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>网站导航</title>
<style>
.nav{width:100%;background: #2c73fa;height: 40px;}
.header{width: 1000px;margin: 0px auto;}
.header ul{margin: 0px;padding: 0px;list-style: none;}
.header ul li{width:200px; height: 40px;line-height:40px; float: left;text-align: center;}
.header ul li:hover{background:#f60;}
.header ul li a{color:#fff;text-decoration:none;font-size:16px;}
</style>
</head>
<body>
<div>
<div>
<ul>
<li><a href="#">首页</a></li>
<li><a href="#">关于我们</a></li>
<li><a href="#">产品中心</a></li>
<li><a href="#">在线留言</a></li>
<li><a href="#">联系我们</a></li>
</ul>
</div>
</div>
</body>
</html>