安科网
源代码：
点击运行
<!DOCTYPE html> <html> <head> <style> #myDIV { width: 300px; height: 200px; border: 1px solid black; background-image: url('/statics/images/course/smiley.gif'); background-position: top left; -webkit-animation: mymove 5s infinite; /* Chrome, Safari, Opera */ animation: mymove 5s infinite; } /* Chrome, Safari, Opera */ @-webkit-keyframes mymove { 50% {background-position: center;} } /* Standard syntax */ @keyframes mymove { 50% {background-position: center;} } </style> </head> <body> <p>逐步改变 background-position 属性，从 "top left" 到 "center",然后回到 "top left":<p> <div id="myDIV"></div> <p>background-position 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>
运行结果
Copyright © 2013 - 2019 Ancii.com All Rights Reserved
京ICP备18063983号-5
京公网安备11010802014868号