html运行实例（cssref_keyframes

代码示例：（标识：cssref_keyframes_5）

<!DOCTYPE html>
<html>
<head>
<style> 
div {
  width: 100px;
  height: 100px;
  background: red;
  position: relative;
  animation: mymove 5s infinite;
}

@keyframes mymove {
  from {top: 0px;}
  50% {top: 100px !important;} /* 被忽略 */
  to {top: 200px;}
}
</style>
</head>
<body>

<h1>@keyframes 规则</h1>

<p>!important 规则在关键帧中被忽略。请尝试删除它，然后查看结果。</p>

<div></div>

</body>
</html>