小导航练习，请指教，谢谢。
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>导航练习</title>
<!-- <link rel="stylesheet" type="text/css" href="./shortcut.css">
<link rel="stylesheet" href="./iconfont.css"> -->
<style type="text/css">
* {
margin: 0;
padding: 0;
color: #424242;
list-style: none;
}
a {
text-decoration: none;
}
/*--2019-06-23-头部-start--*/
.header {
min-width: 1200px;
height: 38px;
line-height: 38px;
background-color: #f8f8f8;
font-family: "Helvetica Neue",Helvetica,Arial,"Microsoft Yahei","Hiragino Sans GB","Heiti SC","WenQuanYi Micro Hei",sans-serif;
position: relative;
z-index: 411;
}
.container {
width: 1200px;
margin: 0 auto;
}
.header-navleft {
float: left;
}
.header-navleft ul li {
float: left;
line-height: 38px;
text-align: center; /*字体居中*/
position: relative;
}
.header a:hover {
color: #1c86ee;
}
.header a {
color: #7D7D7D;
font-size: 13px;
padding: 0px 10px 0px 10px;
/*background-color: #dddddd;*/
}
.header li:before {
content: "";
width: 1px;
height: 10px;
display: block;
position: absolute;
top: 14px;
left: 0;
background: #d3d3d3;
}
.header li:first-child:before {
display: none; /*首元素隐藏*/
}
.header-navright {
float: right;
}
.header-navright ul li {
float: left;
line-height: 38px;
text-align: center center;
position: relative;
}
.nav1 a {
padding: 13px 10px 10px 10px;
}
.header a:hover i {
color: #1c86ee;
}
.header-navright-gouwuche a:hover {
background-color: #ffffff;
}
.header-navright-gouwuche a:hover span {
color: #1c86ee;
}
.header-navright li:last-child:before {
display: none; /*后子元素隐藏*/
}
/*--2019-06-23-隐藏迷你购物车-start--*/
.header-b {
display: none;
width: 300px;
height: 150px;
position: absolute;
top: 38px;
right: 0;
background: #fff;
box-shadow: 0 2px 38px 0 rgba(0,0,0,0.08);
border-radius: 8px 0 8px 8px;
text-align: center;
}
.nav1 {
height: 38px;
position: relative;
background-color: #DFDFDF;
}
.nav1:hover {
background-color: #ffffff;
}
.nav1:hover .header-b {
display: block;
}
.header-b span {
line-height: 150px;
}
/*--2019-06-23-隐藏迷你购物车-end--*/
/*--2019-06-23-头部-end--*/
</style>
</head>
<body>
<!-- 2019-06-23-头部-start-->
<div class="header">
<div class="container">
<div class="header-navleft">
<ul>
<li >
<a href="#">html</a>
</li>
<li>
<a href="#">css</a>
</li>
<li>
<a href="#">js</a>
</li>
<li>
<a href="#">php</a>
</li>
<li>
<a href="#">go</a>
</li>
<li>
<a href="#">vue.js</a>
</li>
</ul>
</div>
<div class="header-navright">
<ul>
<li>
<a href="#">请登录</a>
</li>
<li>
<a href="#">注册</a>
</li>
<li>
<a href="#">
<i class="iconfont icon-xiaoxizhongxin">
</i>消息通知</a>
</li>
<li class="header-navright-gouwuche">
<div class="nav1">
<div>
<a href="#">
<i class="iconfont icon-gouwuche">
</i> 购物车
<span>(0)</span>
</a>
</div>
<div class="header-b">
<span>您的购物车是空的，赶紧选购吧~</span>
</div>
</div>
</li>
</ul>
</div>
</div>
</div>
<!-- 2019-06-23-头部-end -->
</body>
</html>