<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
<style>
.clock{
width: 600px;
height: 600px;
background: url(images/clock.jpg) no-repeat;
margin: 50px auto;
position: relative;
}
.clock div{
width: 100%;
height: 100%;
position: absolute;
top: 0;
left: 0;
}
.h{
background: url(images/hour.png) no-repeat center center;
}
.m{
background: url(images/minute.png)no-repeat center center;
}
.s{
background: url(images/second.png)no-repeat center center;
}
</style>
</head>
<body>
<div class="clock">
<div class="h" ;
//second.style.MozTransform
// 变化 旋转 deg 度
},100);
</script>
</body>
</html>