跟着视频做练习，发现还是有一些指向问题不太清楚。后来有一个细节上，出现错误，显示效果一直不太理想。后来重新跟着视频代码对拍，发现了错误。
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=, initial-scale=1.0">
<title>京东导航条</title>
<link rel="stylesheet" href="./css/reset.css">
<link rel="stylesheet" href="./fontawesome/css/all.css">
<style>
.clearfix::before,
.clearfix::after {
content: '';
display: table;
clear: both;
}
body {
/* 设置字体 */
font: 12px/1.5 Microsoft YaHei, Heiti SC, tahoma, arial, Hiragino Sans GB, "\5B8B\4F53", sans-serif;
color: #ddd;
}
/* 设置外部容器的样式 */
.top-bar-wrapper {
width: 100%;
height: 30px;
background: #e3e4e5;
line-height: 30px;
border-bottom: 1px #ddd solid
}
/* 设置内部容器样式 */
.top-bar {
width: 1190px;
margin: 0 auto;
position: relative;
}
/* 设置字体样式 */
.top-bar a,
.top-bar span,
.top-bar i {
color: #999;
text-decoration: none;
}
.top-bar i {
margin: 0 0 0 2px;
}
.top-bar a:hover,
.top-bar a.highlight {
color: rgb(226, 17, 17);
}
.location {
float: left;
}
/* 设置下拉城市列表的效果 */
.location .city-list {
display: none;
width: 320px;
height: 436px;
background-color: white;
border: 1px solid rgb(204, 204, 204);
/* 设置绝对定位，使其不占据位置 */
position: absolute;
top: 31px;
box-shadow: 0 2px 2px rgba(0, 0, 0, .2);
}
/* 设置current-city移入效果*/
.current-city {
padding: 0 10px;
border: 1px solid transparent;
border-bottom: none;
position: relative;
z-index: 1;
}
.location:hover .current-city {
background-color: white;
border: 1px solid rgb(204, 204, 204);
border-bottom: none;
padding-bottom: 1px;
}
.location .fas {
font-size: 14px;
color: red;
}
.location:hover .city-list {
display: block;
}
/* 设置分割线 */
.shortcut .line {
width: 1px;
height: 10px;
background-color: #999;
margin: 12px 12px 0;
}
.shortcut {
float: right;
}
/* 设置li */
.shortcut li {
float: left;
}
</style>
</head>
<body>
<div class="top-bar-wrapper">
<div class="top-bar clearfix">
<div class="location">
<div class="current-city">
<i class="fas fa-map-marker-alt"></i>
<a href="javascript:;">北京</a>
</div>
<div class="city-list">
</div>
</div>
<ul class="shortcut clearfix">
<li>
<a href="javascript:;">你好，请登录</a>
<a class="highlight" href="javascript:;">免费注册</a>
</li>
<li class="line"></li>
<li>
<a href="javascript:;">我的订单</a>
</li>
<li class="line"></li>
<li>
<a href="javascript:;">我的京东</a>
<i class="fas fa-angle-down"></i>
</li>
<li class="line"></li>
<li>
<a href="javascript:;">京东会员</a>
</li>
<li class="line"></li>
<li>
<a class="highlight" href="javascript:;">企业采购</a>
<i class="fas fa-angle-down"></i>
</li>
<li class="line"></li>
<li>
<span>客户服务</span>
<i class="fas fa-angle-down"></i>
</li>
<li class="line"></li>
<li>
<span>网站导航</span>
<i class="fas fa-angle-down"></i>
</li>
<li class="line"></li>
<li>
<span>手机京东</span>
</li>
</ul>
</div>
</div>
</body>
</html>