<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1.0">
<title>Document</title>
<style>
*{
margin: 0;
padding: 0;
}
div{
width: 605px;
height: 40px;
margin: 100px auto;
}
div ul li{
width: 120px;
height: 40px;
float: left;
text-align: center;
line-height: 40px;
list-style: none;
border-right: 1px solid #fff;
background-color: cyan
}
div ul li a{
text-decoration:none;
color: #FFFFFF;
display: block;
}
div ul li a:hover{
border-top: 5px solid red;
position: relative;
bottom: 5px;
}
</style>
</head>
<body>
<div>
<ul>
<li><a href="http://www.baidu.com">首页</a></li>
<li><a href="#">新闻</a></li>
<li><a href="#">娱乐</a></li>
<li><a href="#">科技</a></li>
<li><a href="#">综合</a></li>
</ul>
</div>
</body>
</html>
