關於HTML5和CSS3實現時鐘的效果

最後更新：2018-06-25 來源：互聯網

上載者：User

創建阿里雲帳戶，並獲得超過 40 款產品的免費試用版；而企業帳戶則可以享有總值 $1200 的免費試用版。立即註冊！

利用html5，css實現鐘擺效果，在項目中經常會遇到，今天把基於HTML5+CSS3實現簡單的時鐘效果的實現代碼分享到指令碼之家平台，需要的朋友參考下吧

目的：

利用html5，css實現鐘擺效果

知識點：

1）利用position/left/top和calc()實現元素的水平和垂直置中；

2）利用CSS3的animation/transform/transform-origin屬性定義動畫；

3）利用transform-origin實現旋轉原點的圓心調整

廢話不多說了，直接看代碼吧，具體代碼如下所示：

<!DOCTYPE html><html><head>    <meta charset="UTF-8">    <title></title>    <style>        li{            list-style:none;        }        #box{            width: 400px;            height: 400px;            position: absolute;            top:calc(50% - 200px);            left:calc(50% - 200px);            border: 2px solid palegoldenrod;        }        #dial{            width: 200px;            height: 200px;            position: absolute;            top:calc(50% - 100px);            left:calc(50% - 100px);            border: 2px solid cyan;            border-radius: 50%;        }           .scaleIndex{            width: 4px;            height: 12px;            position: absolute;            top: 0;            left: calc(50% - 2px);            background-color: gray;            transform-origin: 2px 100px;        }        .angle30{transform : rotate(30deg);}        .angle60{transform : rotate(60deg);}        .angle90{transform : rotate(90deg);}        .angle120{transform : rotate(120deg);}        .angle150{transform : rotate(150deg);}        .angle180{transform : rotate(180deg);}        .angle210{transform : rotate(210deg);}        .angle240{transform : rotate(240deg);}        .angle270{transform : rotate(270deg);}        .angle300{transform : rotate(300deg);}        .angle330{transform : rotate(330deg);}        #fixPoint{            width: 10px;            height: 10px;            position: absolute;            top:calc(50% - 5px);            left:calc(50% - 5px);            background-color: cadetblue;            border-radius: 50%;        }        #hourHand{            width: 6px;            height: 70px;            position:absolute;            top: 40px;            left: calc(50% - 3px);            background-color: darkblue;            transform-origin: 50% 60px;        }        #minuteHand{            width: 4px;            height: 75px;            position:absolute;            top: 35px;            left: calc(50% - 2px);            background-color: yellow;            transform-origin: 50% 65px;        }        #secondHand{            width: 2px;            height: 90px;            position:absolute;            top: 20px;            left: calc(50% - 1px);            background-color: red;            transform-origin: 50% 80px;        }    </style></head><body>    <p id = "box">            <p id = 'dial'>                <ul id = "scale">                    <li class = "scaleIndex"></li>                    <li class = "scaleIndex angle30"></li>                    <li class = "scaleIndex angle60"></li>                    <li class = "scaleIndex angle90"></li>                    <li class = "scaleIndex angle120"></li>                    <li class = "scaleIndex angle150"></li>                    <li class = "scaleIndex angle180"></li>                    <li class = "scaleIndex angle210"></li>                    <li class = "scaleIndex angle240"></li>                    <li class = "scaleIndex angle270"></li>                    <li class = "scaleIndex angle300"></li>                    <li class = "scaleIndex angle330"></li>                </ul>                <p id = "fixPoint"></p>                <p id = "hourHand"></p>                <p id = "minuteHand"></p>                <p id = "secondHand"></p>            </p>        </p><script type = 'text/javascript' src = 'js/jquery-3.2.1.js'></script><script type = "text/javascript">window.onload = function(){            var hourHand = document.getElementById('hourHand');            var minuteHand = document.getElementById('minuteHand');            var secondHand = document.getElementById('secondHand');setInterval(function(){                    var currentTime = new Date();                    var hourValue = currentTime.getHours();                    var hourAngle = hourValue / 24 * 360 + 'deg';                    var minuteValue = currentTime.getMinutes();                    var minuteAngle = minuteValue / 60 * 360 + 'deg';                    var secondValue = currentTime.getSeconds();                    var secondAngle = secondValue / 60 * 360 + 'deg';                    console.log(hourAngle);// 方法一：利用jquery的css()增加屬性var cmdHour = 'rotate('+ hourAngle +')';$('#hourHand').css({transform:'rotate('+ hourAngle +')'});var cmdMinute = 'rotate('+ minuteAngle +')';$('#minuteHand').css({transform:cmdMinute});var cmdSecond = 'rotate('+ secondAngle +')';$('#secondHand').css({transform:cmdSecond});// 方法二：利用DOM元素的style屬性設定//      hourHand.style.transform = 'rotate('+ hourAngle + ')';//      minuteHand.style.transform = 'rotate('+ minuteAngle + ')';//      secondHand.style.transform = 'rotate('+ secondAngle + ')';  },1000);}    </script></body></html>

以上就是本文的全部內容，希望對大家的學習有所協助，更多相關內容請關注topic.alibabacloud.com！

本文章原先以中文撰寫並發佈於 aliyun.com，亦設英文版本，僅作資訊用途。本網站不對文章的準確性，完整性或可靠性或其任何翻譯作出任何明示或暗示的陳述或保證。如對該文章有任何疑慮或投訴，請傳送電郵至 info-contact@alibabacloud.com 並提供相關疑慮或投訴的詳細說明。職員會於 5 個工作天內與您聯絡，一經驗證之後，即會刪除該侵權內容。

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

Get Started for Free

Sales Support

1 on 1 presale consultation

Chat Contact Sales
After-Sales Support

24/7 Technical Support 6 Free Tickets per Quarter Faster Response

Open a Ticket
Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.

Learn More