<html>
<head>
<style>
div
{
width:100px;
height:100px;
background:red;
position:relative;
animation:mymove 2s infinite;
/*Safari 和 Chrome*/
-webkit-animation:mymove 2s infinite;
}
@keyframes mymove
{
from {left:0px;}
to {left:200px;}
}
@-webkit-keyframes mymove /*Safari 和 Chrome*/
{
from {left:0px;}
to {left:200px;}
}
@keyframes myNEWmove
{
from {width:0px;}
to {width:500px;background:blue;}
}
@-webkit-keyframes myNEWmove /*Safari 和 Chrome*/
{
from {width:0px;}
to {width:500px;background:blue;}
}
</style>
</head>
<body>
<p>点击“尝试一下”按钮改变动画中要使用的关键帧：</p>
<button onclick="myFunction()">尝试一下</button>
<script>
function myFunction()
{
document.getElementById("myDIV").style.animationName = "myNEWmove";
document.getElementById("myDIV").style.WebkitAnimationName = "myNEWmove"; // 针对 Chrome 和 Safari 的代码
}
</script>
<p><strong>注意：</strong>Internet Explorer 9 及其之前的版本不支持 animationName 属性。</p>
<div id="myDIV"></div>
</body>
</html>