使用css3做钟表




<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <title></title>
        <link rel="stylesheet" type="text/css" href="../css/public.css"/>
        <style type="text/css" id="css">
            .wrap{width: 200px;height: 200px;border: 2px solid #000;border-radius: 50%;margin: 100px auto;position: relative;}
            li{position: absolute;width: 2px;height: 5px;top: 0;left: 99px;background: #000;-webkit-transform-origin: center 100px;}
            /*li:nth-child(1){-webkit-transform: rotate(0deg);}
            li:nth-child(2){-webkit-transform: rotate(6deg);}
            li:nth-child(3){-webkit-transform: rotate(12deg);}
            li:nth-child(4){-webkit-transform: rotate(18deg);}
            li:nth-child(5){-webkit-transform: rotate(24deg);}
            li:nth-child(6){-webkit-transform: rotate(30deg);}*/
            li:nth-child(5n+1){height: 10px;}
            #hour{width: 6px;height: 40px;background: #000;position: absolute;left: 97px;top: 60px;-webkit-transform-origin: bottom;}
            #min{width: 4px;height: 60px;background: #999;position: absolute;left: 98px;top: 40px;-webkit-transform-origin: bottom;}
            #sec{width: 2px;height: 70px;background: #f00;position: absolute;left: 99px;top: 30px;-webkit-transform-origin: bottom;}
            .ico{width: 10px;height: 10px;background: #000;position: absolute;top: 95px;left: 95px;border-radius: 50%;}
        </style>
        <script type="text/javascript">
            window.onload=function(){
                var oUl=document.getElementById("list");
                var oCss=document.getElementById("css");
                var oHour=document.getElementById("hour");
                var oMin=document.getElementById("min");
                var oSec=document.getElementById("sec");
                var aLi='';
                var sss='';
                for(var i=0;i<60;i++){
                    aLi+="<li></li>";
                    sss+='li:nth-child('+(i+1)+'){-webkit-transform: rotate('+i*6+'deg);}'
                }
                oUl.innerHTML=aLi;
                oCss.innerHTML+=sss;
                function toTime(){
                    var date=new Date();
                    var mySec=date.getSeconds();
                    var myMin=date.getMinutes()+mySec/60;
                    var myHour=date.getHours()+myMin/60;
                    oHour.style.webkitTransform='rotate('+myHour*30+'deg)';
                    oMin.style.webkitTransform='rotate('+myMin*6+'deg)';
                    oSec.style.webkitTransform='rotate('+mySec*6+'deg)';
                }
                toTime();
                setInterval(toTime,1000);
            }
        </script>
    </head>
    <body>
        <div class="wrap">
            <ul id="list">
                <li></li>
                <li></li>
                <li></li>
                <li></li>
                <li></li>
                <li></li>
            </ul>
            <div id="hour"></div>
            <div id="min"></div>
            <div id="sec"></div>
            <div class="ico"></div>
        </div>
    </body>
</html>

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原文地址：https://www.cnblogs.com/rain92/p/6135039.html