一个小图标特效，挺有趣的，代码也很容易懂。
jQ小图标上下滑动特效：
代码如下：
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
</head>
<link rel="stylesheet" href="css/normalize.css">
<style>
.tubiao{
width: 300px;
height: 100px;
margin: 100px auto;
}
a{
position: relative;
padding: 10px;
display: inline-block;
text-decoration: none;
color: #000;
text-align: center;
}
i{
position: absolute;
left: 5px;
top: -20px;
opacity: 1;
}
</style>
<body>
<div class="tubiao">
<a href="#"><i><img src="/UploadFiles/2021-04-02/1.png">