<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>购物车</title>
<style>
#shop{
width: 100px;
height: 40px;
background-color: #000;
float: right;
border-radius: 4px;
line-height: 40px;
text-align: center;
position: relative;}
#shop a{
font-size: 14px;
color:#fff;
text-decoration: none;
}
#shop #shop_content{
width: 200px;
height: 100px;
background-color: red;
position: absolute;
top:40px;
left: -100px;
display:none;
}
#shop:hover #shop_content{
display:block;
}
</style>
</head>
<body>
<div id="shop">
<a href="#">购物车</a>
<div id="shop_content"></div>
</div>
</body>
</html>
原文：https://www.cnblogs.com/lilyxiaoyy/p/11126595.html