HTML
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>笔下光年</title>
</head>
<body>
<p>逐步改变 transform-origin 从 "50% 50% 0" 到 "0 0 0":<p>
<p><b>注意：</b>灰色 DIV 元素的 DIV2 元素不会旋转。</p>
<div id="DIV1">DIV1
<div id="DIV2original">DIV2</div> <div id="DIV2">DIV2</div>
</div>
<p>transform-origin 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>
CSS
#DIV1 {
height: 200px;
width: 200px;
margin: auto;
border: 1px solid black;
}
#DIV2 {
width: 150px;
height: 150px;
border: 1px solid black;
background-color: coral;
-ms-transform: rotate(45deg); /* IE 9 */
/* Chrome, Safari, Opera */
-webkit-transform: rotate(45deg);
-webkit-animation: mymove 5s infinite;
/* Standard syntax */
transform: rotate(45deg);
animation: mymove 5s infinite;
}
/* Chrome, Safari, Opera */
@-webkit-keyframes mymove {
50% {-webkit-transform-origin: 0 0 0;}
}
/* Standard syntax */
@keyframes mymove {
50% {transform-origin: 0 0 0;}
}
#DIV2original {
position: absolute;
width: 150px;
height: 150px;
border: 1px dashed grey;
background-color: lightgrey;
opacity: 0.5;
}