fmpq.com
源代码：
点击运行
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Fmpq教程(fmpq.com)</title> <style> div{ width:100px; height:100px; background:red; position:relative; animation:mymove 5s infinite; /*Safari、Chrome 和 Opera*/ -webkit-animation:mymove 5s infinite; } @keyframes mymove{ from {left:0px;} to {left:200px;} } /*Safari、Chrome 和 Opera*/ @-webkit-keyframes mymove{ from {left:0px;} to {left:200px;} } </style> </head> <body> <p>点击“尝试一下”按钮方向播放动画。</p> <button onclick="myFunction()">尝试一下</button> <script> function myFunction(){ document.getElementById("myDIV").style.animationDirection = "reverse"; // 针对 Chrome、Safari 和 Opera 的代码 document.getElementById("myDIV").style.WebkitAnimationDirection = "reverse"; } </script> <p><strong>注意：</strong>只有 Firefox 支持 animationDirection 属性。</p> <div id="myDIV"></div> </body> </html>
运行结果