<html><head><meta charset="utf-8"> <title>手册网(www.shouce.ren)</title> <style> #myDIV { width: 300px; height: 200px; background: red url('/themes/zhan/styles/images/compatible_firefox.gif') no-repeat top left/5px 5px; animation: mymove 5s infinite; /* Chrome, Safari, Opera */ animation: mymove 5s infinite;}/* Chrome, Safari, Opera */@-webkit-keyframes mymove { 50% {background: blue bottom right/50px 50px;}}/* Standard syntax */@keyframes mymove { 50% {background: blue bottom right/50px 50px;}}</style></head><body><p>逐步改变背景属性:<p><div id="myDIV"></div><p>background 属性是所有背景属性的简写属性。</p><p>CSS 中仅有 background-color, background-position, 和 background-size 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></body></html>