代码示例：
<span style="font-size:18px;"><!DOCTYPE html>
<html lang="zh-cn">
<head>
<style>
@keyframes wml {
from {
transform:rotate(0);
-ms-transform:rotate(0);
-webkit-transform:rotate(0);
-o-transform:rotate(0);
-moz-transform:rotate(0)
}
to {
transform:rotate(360deg);
-ms-transform:rotate(360deg);
-webkit-transform:rotate(360deg);
-o-transform:rotate(360deg);
-moz-transform:rotate(360deg)
}
}.asd {
animation:wml 3s linear infinite;
-moz-animation:wml 3s linear infinite;
-webkit-animation:wml 3s linear infinite;
-o-animation:wml 3s linear infinite
}
</style>
</head>
<body>
<img class="asd" src="
</body>
</html>
</span>
from 0 to 360 表示顺时针旋转
from 360 to 0 表示逆时针旋转
3s 表示旋转速度
