html
<body>
<ul id='box'></ul>
</body>
css
<style>
*{
margin: 0;
padding: 0;
}
body{
background-color: #aaa;
}
ul{
width: 400px;
height: 400px;
border: 5px solid skyblue;
margin: 100px auto 0 auto;
border-radius: 50%;
background: radial-gradient(green 50%, yellow 100%);;
position: relative;
}
ul li{
width: 2px;
height: 15px;
list-style: none;
background-color: #fff;
position: absolute;
left: 199px;
transform-origin: center 200px;
}
h1{
width: 2px;
height: 180px;
background-color: orange;
position: absolute;
left: 199px;
top:20px;
-transition: 1s linear;
transform-origin: center 180px;
}
h2{
width: 6px;
height: 160px;
background-color: #fff;
position: absolute;
left: 197px;
top:40px;
transform-origin: center 160px;
border-radius:20%;
}
h3{
width: 8px;
height: 140px;
background-color: #fff;
position: absolute;
left: 196px;
top:60px;
transform-origin: center 140px;
transform: rotate(0deg);
border-radius: 20%;
}
h4{
width: 30px;
height: 30px;
position: absolute;
left: 185px;
top:185px;
border-radius: 50%;
background-color: orange;
}
span{
display: inline-block;
width: 20px;
height: 20px;
line-height: 20px;
text-align: center;
font-size: 24px;
position: absolute;
left: -10px;
top: 28px;
color: #fff;
}
</style>
js
(function(){
var oUl=document.getElementById('box');
var timer=null;
for(var i=0,j=0;i<60;i++,j+=6){
var oLi=document.createElement('li');
oLi.style.transform='rotate('+j+'deg)';
if(i%5==0){
oLi.style.height='20px';
var oSpan=document.createElement('span');
oSpan.style.transform='rotate('+(-j)+'deg)';
if(i==0){
oSpan.innerHTML='12';
oSpan.style.fontSize='30px';
oSpan.style.left='-17px';
}else{
oSpan.innerHTML=parseInt(i/5);
if(i%15==0){
oSpan.style.fontSize='36px';
}
}
oLi.appendChild(oSpan);
}
if(i==0){
var oH1=document.createElement('h1');
var oH2=document.createElement('h2');
var oH3=document.createElement('h3');
var oH4=document.createElement('h4');
oUl.appendChild(oH1);
oUl.appendChild(oH2);
oUl.appendChild(oH3);
oUl.appendChild(oH4);
}
oUl.appendChild(oLi);
}
var oH=document.getElementsByTagName('h3')[0];
var oM=document.getElementsByTagName('h2')[0];
var oS=document.getElementsByTagName('h1')[0];
timer=setInterval(function(){
var now = new Date();
var s=now.getSeconds();
var m=now.getMinutes()+s/60;
var h=now.getHours()+m/60;
oS.style.transform='rotate('+s*6+'deg)';
oM.style.transform='rotate('+m*6+'deg)';
oH.style.transform='rotate('+(h%12)*30+'deg)';
},30);
})();
作品截图
