素材8网教程-在线编辑器

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>素材8网教程(study.sucai8.cn)</title>
<style> 
#myDIV {
    margin: 25px;
    width: 550px;
    height: 100px;
    background: orange;
    position: relative;
    font-size: 20px;
}
/* Chrome, Safari, Opera */
@-webkit-keyframes mymove {
    from {top: 0px;}
    to {top: 200px;}
}
@keyframes mymove {
    from {top: 0px;}
    to {top: 200px;}
}
</style>
</head>
<body>

<p>该实例使用了 addEventListener() 方法为 DIV 元素添加"animationstart", "animationiteration" 和 "animationend" 事件。</p>
<div id="myDIV" onclick="myFunction()">点我开始动画</div>
<script>
var x = document.getElementById("myDIV")
// 使用 JavaScript 开始动画
function myFunction() {
    x.style.WebkitAnimation = "mymove 4s 2"; // Chrome, Safari 和 Opera 代码
    x.style.animation = "mymove 4s 2";
}
//  Chrome, Safari 和 Opera
x.addEventListener("webkitAnimationStart", myStartFunction);
x.addEventListener("webkitAnimationIteration", myIterationFunction);
x.addEventListener("webkitAnimationEnd", myEndFunction);
x.addEventListener("animationstart", myStartFunction);
x.addEventListener("animationiteration", myIterationFunction);
x.addEventListener("animationend", myEndFunction);
function myStartFunction() {
    this.innerHTML = "animationstart 事件触发 - 动画已经开始";
    this.style.backgroundColor = "pink";
}
function myIterationFunction() {
    this.innerHTML = "animationiteration 事件触发 - 动画重新播放";
    this.style.backgroundColor = "lightblue";
}
function myEndFunction() {
    this.innerHTML = "animationend 事件触发 - 动画已经完成";
    this.style.backgroundColor = "lightgray";
}
</script>

</body>
</html>