fmpq.com
源代码：
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<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Fmpq教程(fmpq.com)</title> <style> #myDIV { position: absolute; top: 180px; width: 300px; height: 150px; background-color: lightblue; border: 1px solid black; -webkit-animation: mymove 5s infinite; /* Chrome, Safari, Opera */ animation: mymove 5s infinite; } #DIV2 { position: absolute; top: 160px; left: 30px; width: 300px; height: 150px; background-color: coral; border: 1px solid black; } /* Chrome, Safari, Opera */ @-webkit-keyframes mymove { 50% {opacity: 0;} } /* Standard syntax */ @keyframes mymove { 50% {opacity: 0;} } </style> </head> <body> <p>opacity 属性支持动画效果。</p> <p><b>注意：</b>Internet Explorer 9 及更早 IE 版本不支持 CSS 动画。</p> <p>逐步改变蓝色 DIV 元素的透明度 从 1 到 0:<p> <div id="DIV2"> <h1>Voila!</h1> </div> <div id="myDIV"> </div> </body> </html>
运行结果