主要逻辑 根据JS 的Date属性 求得当前的 时 分 秒 之后,按照 360/(时|分|秒) 来对三个指针元素进行旋转
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
#box {
width: 600px;
height: 600px;
/*border: 1px solid #000;*/
background: url("img/bg.png") no-repeat;
background-size: cover;
margin: 30px auto;
position: relative;
overflow: hidden;
}
#h{
width:100%;
height:100%;
background: url("img/h.png") no-repeat;
background-size: cover;
position: absolute;
}
#m{
width:100%;
height:100%;
background: url("img/m.png") no-repeat;
background-size: cover;
position: absolute;
}
#s{
width:100%;
height:100%;
background: url("img/s.png") no-repeat;
background-size: cover;
position: absolute;
}
</style>
</head>
<body>
<div id="box">
<div id="h"></div>
<div id="m"></div>
<div id="s"></div>
</div>
<script>
window.onload = function(){
// 1:找到三个元素标签
var h = document.getElementById("h"); //时
var m = document.getElementById("m"); //分
var s = document.getElementById("s"); //秒
setInterval(function(){
var date = new Date();
var HH = (date.getHours()%12);
var MM = date.getMinutes();
var SS = date.getSeconds();
h.style.transform = "rotate("+(HH*30)+"deg)";
m.style.transform = "rotate("+(MM*6)+"deg)";
s.style.transform = "rotate("+(SS*6)+"deg)";
},1000)
}
</script>
</body>
</html>
更多JavaScript时钟特效点击查看：JavaScript时钟特效专题
