下图通过css3动画栈实现了鼠标移上图片，图片发亮的效果。
具体代码如下：
<!DOCTYPE html> <html id="ok"> <head> <style> div { 100px; height:100px; background:blue; } div:hover,img:hover{animation:shade 5s; -webkit-animation:shade 5s; -moz-animation:shade 5s; -o-animation:shade 5s; animation:shade 5s; } @keyframes shade{ from{opacity:1;} 15%{opacity:0.4;} to{opacity:1;} } @-webkit-keyframes shade{ from{opacity:1;} 15%{opacity:0.4;} to{opacity:1;} } @-moz-keyframes shade{ from{opacity:1;} 15%{opacity:0.4;} to{opacity:1;} } @-o-keyframes shade{ from{opacity:1;} 15%{opacity:0.4;} to{opacity:1;} } </style> </head> <body> <div></div> <p><img src="http://pica.nipic.com/2007-12-24/20071224112445514_2.jpg"/></p> <a id="run" href="javascript:void(0);">运行代码</a> </body> </html>
<script src="http://pc1.gtimg.com/js/jquery-1.4.4.min.js"></scirpt>
<script type="text/javascript">
function runCode(obj) {
var winname = window.open('', "_blank", '');
winname.document.open('text/html', 'replace');
winname.opener = null // 防止代码对论谈页面修改
winname.document.write(obj.value);
winname.document.close();
}
$(document).ready(function(){
$("#run").click(function(){
runCode($("#ok"));
})
})
</script>