<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>笔下光年</title> </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>
#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;}
}