摘要：<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>nav</title> <link rel="stylesheet" type="text/css"&
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>nav</title>
<link rel="stylesheet" type="text/css" href="css/font-awesome-4.7.0/css/font-awesome.min.css">
<style>
*{margin: 0px;padding: 0px;}
a{text-decoration: none;}
ul{list-style: none;}
.nav{margin: 0px auto;width:1200px;line-height: 70px;}
.nav_left{float:left;width:180px;height: 70px;}
.nav_left img{vertical-align:middle;}
.nav_center{float:left;margin-left:100px;width:700px;height: 70px;position: relative;}
.nav_center a{display:inline-block;width:60px;text-align: center;color: #333333}
.nav_center a:hover{color:#FF9300;}
.nav_center ul{display:none;position: absolute;}
.nav_center ul li{height: 30px;width: 60px;line-height: 30px;text-align: left;}
.nav_center ul li:hover{color:#FF9300;}
.nav_center_a:hover ul{display: block;color:#333333;}
.nav_right{float:right;width:120px;height: 70px;}
.nav_right div{display: inline-block;width: 30px;}
</style>
</head>
<body>
<div>
<div>
<img src="http://www.php.cn/static/images/logo.png">
</div>
<div>
<a href="#">首页</a>
<a href="#">
栏目 <i class="fa fa-caret-square-o-down"></i>
<ul>
<li>艺术</li>
<li>健康出行</li>
<li>智能设备</li>
<li>精选课</li>
</ul>
</a>
<a href="#">言论</a>
<a href="#">精选</a>
<a href="#">业务 <i class="fa fa-caret-square-o-down"></i>
<ul>
<li>艺术</li>
<li>健康出行</li>
<li>智能设备</li>
<li>精选课</li>
</ul></a>
<a href="#">合作</a>
</div>
<div>
<div><i class="fa fa-search" style="width: 30px;height: 30px;"></i></div>
<div><i class="fa fa-user-o" style="width: 30px;height: 30px;"></i></div>
</div>
</div>
</body>
</html>显示如下
批改老师：天蓬老师批改时间：2019-02-18 10:59:12
老师总结：做得挺不错的, 代码也规范, 如果加上些注释,会更好
