<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>CSS3动画</title>
<style type="text/css">
div{
height: 50px;
width: 50px;
background: pink;
/*调用动画*/
animation:animates 5s linear 1s 2;
}
/*创建 关键帧*/
@keyframes animates{
0%{
width: 0px;
transform: translate(50px,0);
}
25%{
width: 25px;
height: 25px;
transform: translate(150px,0) rotate(90deg);
}
50%{
width: 50px;
height: 50px;
transform: translate(300px,0) rotate(180deg);
}
75%{
width: 25px;
height: 25px;
transform: translate(150px,0) rotate(270deg);
}
100%{
width: 50px;
height: 50px;
transform: translate(50px,0) rotate(360deg);
}
}
</style>
</head>
<body>
<div></div>
</body>
</html>
来源：https://www.cnblogs.com/zwy0709/p/7774806.html