<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>笔下光年</title> </head> <body> <p>逐步改变 box-shadow 属性:<p> <div id="myDIV"> <h1>myDIV</h1> </div> <p>box-shadow 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>
#myDIV { width: 100px; height: 100px; background-color: coral; color: white; -webkit-animation: mymove 5s infinite; /* Chrome, Safari, Opera */ animation: mymove 5s infinite; } /* Chrome, Safari, Opera */ @-webkit-keyframes mymove { 50% {box-shadow: 10px 20px 30px blue;} } /* Standard syntax */ @keyframes mymove { 50% {box-shadow: 10px 20px 30px blue;} }