淘宝导航二级菜单的写法
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>html课程学习-淘宝导航条</title>
<link rel="shortcut icon" type="image/X-icon" href="image/logo2.png">
<link rel="stylesheet" type="text/css" href="css/index.css">
<link rel="stylesheet" type="text/css" href="css/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>已买到宝贝</li>
<li>我的足迹</li>
</ul>
</a>
<a href=""><i class="fa fa-bicycle" aria-hidden="true" style="color: #FF5000"></i> 购物车</a>
<a href="" class="header_a"><i class=" fa fa-star "></i>收藏夹 <i class=" fa fa-angle-down "></i>
<ul>
<li>已买到宝贝</li>
<li>我的足迹</li>
<li>天猫商城</li>
<li>天猫商城</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 <i class=" fa fa-angle-down "></i></a>
<a href="" class="header_a">网站导航 <i class=" fa fa-angle-down "></i>
<ul>
<li>回到首页</li>
<li>天猫商城</li>
<li>天猫商城</li>
<li>天猫商城</li>
<li>天猫商城</li>
</ul>
</a>
</div>
</div>
<div class="clear"></div>
</div>
</body>
</html>
/*-----------一下是css部分--------------------*/
*{margin: 0px;padding: 0px;}
.clear{clear: both;}
li{list-style: none;}
a{text-decoration: none;color: #6C6C6C;}
.header{width: 100%;background-color: #F5F5F5;}
.header_content{width: 1200px; margin: 0px auto;line-height: 40px;}
.header_left{height: 40px; float: left;}
.header_left a{margin-right: 5px;}/*设置a标签字体间距*/
.header_content a:hover{color: #FF5000;}
.header_right{height: 40px;float: right;}
.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;}/*给ul一个像素的边框并且设置颜色.display: none 隐藏这个ul边框*/
.header_a:hover ul{display: block; position: absolute;width: 100px;}/*移动鼠标显示下拉菜单*/
.header_a ul li:hover{background-color: #ccc;}
.header_a ul li{color: #6C6C6C;height: 30px;line-height: 30px;text-align: left; padding: 0px 3px; margin: 5px 0px;}
