abstract：<!DOCTYPE html><html><head> <title>淘宝导航</title> <link rel="stylesheet" type="text/css" href="index.css"> <link rel="stylesheet
<!DOCTYPE html>
<html>
<head>
<title>淘宝导航</title>
<link rel="stylesheet" type="text/css" href="index.css">
<link rel="stylesheet" type="text/css" href="font-awesome-4.7.0\css\font-awesome.min.css">
</head>
<body>
<div class="header">
<div class="header_content">
<div class="header_left">
<a href="" class="header_a">中国大陆 <i class=" fa fa-angle-down"></i></a>
<a href="" style="color: #FF5000;">亲，请登录</a>
<a href="">免费注册</a>
<a href="">手机逛淘宝</a>
</div>
<div class="header_right">
<a href="" class="header_a">我的淘宝<i class=" fa fa-angle-down"></i>
<ul>
<li>已买到的宝贝</li>
<li>我的足迹</li>
</ul>
</a>
<a href=""><span class="fa fa-cart-plus" style="color: #FF5000;"></span> 购物车</a>
<a href="" class="header_a"><span class="fa fa-star" style="color: #FF5000;"></span> 收藏夹<i class=" fa fa-angle-down"></i>
<ul>
<li>收藏的店铺</li>
<li>收藏的宝贝</li>
</ul>
</a>
<a href="">商品分类</a>
<a href="" class="header_a">卖家中心<i class=" fa fa-angle-down"></i></a>
<a href="" class="header_a">联系客服
<ul>
<li>消费者客服</li>
<li>卖家客服</li>
</ul>
</a>
<a href="" class="header_a">网站导航</a>
</div>
</div>
<div class="clear"></div>
</div>
</body>
</html>
*{margin: 0px;padding: 0px;}
a{text-decoration: none;font-size: 13px;}
li{list-style: none;}
.clear{clear: both;}
.header{width: 100%;background-color: #ccc;}
.header_content{width: 1200px;margin: 0px auto;line-height: 40px;}
.header_left{height: 40px;float: left;}
.header_left a{margin-right: 5px;}
.header_content a:hover{color: #FF5000;}
.header_right{width: 700px;height: 40px;float: right;}
.header_right a{margin-right: 5px;}
.header_a{display: inline-block;height: 40px;width: 90px;text-align: center;position: relative;}
.header_a:hover{background-color: #fff;}
.header_a ul{border: 1px solid #F5F5F5;display: none;border-top: none;}
.header_a:hover ul{display: block;position: absolute;}
.header_a ul li:hover{background-color: #F5F5F5;}
.header_a ul li{color: #6c6c6c;height: 30px;line-height: 30px;text-align: left;padding: 0px 3px;margin: 5px 0px;}
Correcting teacher：灭绝师太Correction time：2019-01-06 17:22:39
Teacher's summary：布局没毛病，建议：带有二级下拉菜单的导航不要用a链接嵌套，会造成代码冗余