<html>
<head>
<style>
#myDIV {
width: 100px;
height: 100px;
background: red;
-webkit-transition: width 2s; /* For Safari 3.1 to 6.0 */
transition: width 2s;
}
#myDIV:hover {
width: 400px;
}
</style>
</head>
<body>
<p>鼠标移动到 div 元素上，查看过渡效果。</p>
<div id="myDIV"></div>
<p><b>注意：</b>该实例无法在 Internet Explorer 9 及更早 IE 版本上工作。</p>
<script>
// Safari 3.1 到 6.0 版本代码
document.getElementById("myDIV").addEventListener("webkitTransitionEnd", myFunction);
// 标准语法
document.getElementById("myDIV").addEventListener("transitionend", myFunction);
function myFunction() {
this.innerHTML = "过渡事件触发 - 过渡已完成";
this.style.backgroundColor = "pink";
}
</script>
</body>
</html>