​x
 
<!DOCTYPE html>
<html>
<head>
<style> 
div {
  width: 100px;
  height: 100px;
  background: red;
  position: relative;
  animation-name: example;
  animation-duration: 3s;  
  animation-delay: 2s;
  animation-fill-mode: backwards;
}
​
@keyframes example {
  from {top: 0px; background-color: yellow;}
  to {top: 200px;}
}
</style>
</head>
<body>
​
<p>动画开始之前（animation-delay 期间），让 div 元素获取第一个关键帧设置的样式值：</p>
​
<div></div>
​
<p><b>注释：</b>Internet Explorer 9 以及更早的版本不支持 animation-fill-mode 属性。</p>
​
</body>
</html>
​