<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>旋转菜单</title>
<link rel="stylesheet" href="style8.css" type="text/css">
</head>
<body>
<div class="se">
<h3><a href="">IT</a></h3>
<div><img src="imges/it.jpg" ></div>
</div>
<div class="se">
<h3><a href="">创投</a></h3>
<div><img src="imges/kk.jpg" ></div>
</div>
<div class="se">
<h3><a href="">探索</a></h3>
<div><img src="imges/dd.jpg" ></div>
</div>
</body>
</html>
img{
width: 500px;
height: 345px;
}
*{
margin: 0;
padding: 0;
}
h3+div{
height: 0px;
overflow: hidden;
transform: all 1s ease;
}
a{
text-decoration: none;
}
.se{
width: 300px;
background: rgba(180,60,30,0.3);
margin-top: 5px;
margin-left: 20px;
float: left;
}
h3{
background: rgba(180,80,30,0.8);
padding: 5px 25px;
border-radius: 20px;
}
.se:hover h3+div{
height: 345px;
overflow: auto;
}
html5 css折叠导航栏
原文地址：https://www.cnblogs.com/houweidong/p/9752973.html