<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Nav-bar</title>
<style>
*{
padding: 0;
margin: 0;
}
.page{
width: 100%;
height: 3000px;
background: url("mooc.png") center top no-repeat;
}
.nav{
width:160;
height:auto;
position: fixed;
left:0;
top: 50%;
margin-top:-103px;
font-family: 'Miscrosoft YaHei'
}
.nav-li{
width: 160px;
height: 40px;
border-bottom: 1px solid #fff;
background: #333;
text-align: center;
line-height: 40px;
color: #fff;
font-size: 16px;
}
.tit{
width: 160px;
height: 40px;
}
.nav-li ul{
width: 160px;
height: auto;
background: #fff;
}
.nav-li ul li{
width: 160px;
height: 40px;
border-bottom: 1px dashed #666;
color: #333;
text-align: center;
line-height: 40px;
}
</style>
</head>
<body>
<div class="page">
<div class="nav">
<div class="nav-li">
<div class="tit">网站导航</div>
<ul>
<li>
二级导航
</li>
</ul>
</div>
<div class="nav-li">网站导航</div>
<div class="nav-li">网站导航</div>
<div class="nav-li">网站导航</div>
<div class="nav-li">网站导航</div>
</div>
</div>
</body>
</html>
