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源代碼:

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"> 
<title>Wfuyu教程(wfuyu.com)</title> 
<style> 
div
{
	width:100px;
	height:100px;
	background:red;
	animation:myfirst 5s;
	-moz-animation:myfirst 5s; /* Firefox */
	-webkit-animation:myfirst 5s; /* Safari and Chrome */
	-o-animation:myfirst 5s; /* Opera */
}

@keyframes myfirst
{
	0%   {background:red;}
	25%  {background:yellow;}
	50%  {background:blue;}
	100% {background:green;}
}

@-moz-keyframes myfirst /* Firefox */
{
	0%   {background:red;}
	25%  {background:yellow;}
	50%  {background:blue;}
	100% {background:green;}
}

@-webkit-keyframes myfirst /* Safari and Chrome */
{
	0%   {background:red;}
	25%  {background:yellow;}
	50%  {background:blue;}
	100% {background:green;}
}

@-o-keyframes myfirst /* Opera */
{
	0%   {background:red;}
	25%  {background:yellow;}
	50%  {background:blue;}
	100% {background:green;}
}
</style>
</head>
<body>

<p><b>注釋：</b>當動畫完成時，會變回初始的樣式。</p>

<p><b>注意:</b> 該實例在 Internet Explorer 9 及更早 IE 版本是無效的。</p>

</body>
</html>

運行結果：

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