Table of Contents
效果图
技术点
流程
--
Home Web Front-end HTML Tutorial HTML+CSS3再加一点点JS做的一个小时钟_html/css_WEB-ITnose

HTML+CSS3再加一点点JS做的一个小时钟_html/css_WEB-ITnose

Jun 21, 2016 am 09:08 AM

原文:http://margox.me/css3clock.html

第一次发文章,比较激动。
本码农长期浸淫于Dribbble等设计师网站,看到那些好看的设计作品就非常激动,但是无奈PS不精通,AI也早忘光了,只不过对前端略有研究,偶然间看到几个设计清爽的时钟,觉得用CSS实现起来应该也没什么难度,于是花了个把钟头琢磨了一个出来。

效果图

技术点

  • box-shadow 表盘的质感什么的全靠它了
  • nth-child(x) 用于表盘刻度的定位什么的
  • transform-origin 这个用来定位三个表针旋转的中心点
  • keyframes 表针动画效果

流程

先设计好DOM结构,代码如下:

<div class="clock-wrapper">    <div class="clock-base">        <div class="click-indicator">            <div></div>            <div></div>            <div></div>            <div></div>            <div></div>            <div></div>            <div></div>            <div></div>            <div></div>            <div></div>            <div></div>            <div></div>        </div>        <div class="clock-hour"></div>        <div class="clock-minute"></div>        <div class="clock-second"></div>        <div class="clock-center"></div>    </div></div>
Copy after login

结构很简单,从样式名可以看出来每个元素的用处,中间那段空div自然就是表盘刻度了。
接下来是CSS代码

html,body{    height: 100%;    margin: 0;    padding: 0;    background-image: linear-gradient(#e7e7e7,#d7d7d7);}/*时钟容器*/.clock-wrapper{    position: absolute;    top: 0;    right: 0;    bottom: 100px;    left: 0;    width: 250px;    height: 250px;    margin: auto;    padding: 5px;    background-image: linear-gradient(#f7f7f7,#e0e0e0);    border-radius: 50%;    box-shadow: 0 10px 15px rgba(0,0,0,.15),0 2px 2px rgba(0,0,0,.2);}/*表盘*/.clock-base{    width: 250px;    height: 250px;    background-color: #eee;    border-radius: 50%;    box-shadow: 0 0 5px #eee;}/*表盘刻度容器*/.click-indicator{    position: absolute;    z-index: 1;    top: 15px;    left: 15px;    width: 230px;    height: 230px;}/*表盘刻度*/.click-indicator div{    position: absolute;    width: 2px;    height: 4px;    margin: 113px 114px;    background-color: #ddd;}/*分别设置各个刻度的位置和角度*/.click-indicator div:nth-child(1) {    transform: rotate(30deg) translateY(-113px);}.click-indicator div:nth-child(2) {    transform: rotate(60deg) translateY(-113px);}.click-indicator div:nth-child(3) {    transform: rotate(90deg) translateY(-113px);    background-color: #aaa;}.click-indicator div:nth-child(4) {    transform: rotate(120deg) translateY(-113px);}.click-indicator div:nth-child(5) {    transform: rotate(150deg) translateY(-113px);}.click-indicator div:nth-child(6) {    transform: rotate(180deg) translateY(-113px);    background-color: #aaa;}.click-indicator div:nth-child(7) {    transform: rotate(210deg) translateY(-113px);}.click-indicator div:nth-child(8) {    transform: rotate(240deg) translateY(-113px);}.click-indicator div:nth-child(9) {    transform: rotate(270deg) translateY(-113px);    background-color: #aaa;}.click-indicator div:nth-child(10) {    transform: rotate(300deg) translateY(-113px);}.click-indicator div:nth-child(11) {    transform: rotate(330deg) translateY(-113px);}.click-indicator div:nth-child(12) {    transform: rotate(360deg) translateY(-113px);    background-color: #c00;}/*时针*/.clock-hour{    position: absolute;    z-index: 2;    top: 80px;    left: 128px;    width: 4px;    height: 65px;    background-color: #555;    border-radius: 2px;    box-shadow: 0 0 2px rgba(0,0,0,.2);    transform-origin: 2px 50px;    transition: .5s;    -webkit-animation: rotate-hour 43200s linear infinite;}/*分针*/.clock-minute{    position: absolute;    z-index: 3;    top: 60px;    left: 128px;    width: 4px;    height: 85px;    background-color: #555;    border-radius: 2px;    box-shadow: 0 0 2px rgba(0,0,0,.2);    transform-origin: 2px 70px;    transition: .5s;    -webkit-animation: rotate-minute 3600s linear infinite;}/*秒针*/.clock-second{    position: absolute;    z-index: 4;    top: 20px;    left: 129px;    width: 2px;    height: 130px;    background-color: #a00;    box-shadow: 0 0 2px rgba(0,0,0,.2);    transform-origin: 1px 110px;    transition: .5s;    -webkit-animation: rotate-second 60s linear infinite;}.clock-second:after{    content: "";    display: block;    position: absolute;    left: -5px;    bottom: 14px;    width: 8px;    height: 8px;    background-color: #a00;    border: solid 2px #a00;    border-radius: 50%;    box-shadow: 0 0 3px rgba(0,0,0,.2);}/*表盘中央的原型区域*/.clock-center{    position: absolute;    z-index: 1;    width: 150px;    height: 150px;    top: 55px;    left: 55px;    background-image: linear-gradient(#e3e3e3,#f7f7f7);    border-radius: 50%;    box-shadow: inset 0 -1px 0 #fafafa, inset 0 1px 0 #e3e3e3;}.clock-center:after{    content: "";    display: block;    width: 20px;    height: 20px;    margin: 65px;    background-color: #ddd;    border-radius: 50%;}
Copy after login

样式文件就这些,不过这样的话三个指针都是在12点的,接下来需要让指针动起来。
其实简单点的话直接在css里面定好动画规则就行了:时针3600秒旋转360度,分针秒针以此类推。
但是强迫症表示这样坚决不行,连正确的时间都不能指示的时钟肯定是山寨品,所以这里需要找CSS的好兄弟JavaScript借下力了:

(function(){    //generate clock animations    var now       = new Date(),        hourDeg   = now.getHours() / 12 * 360 + now.getMinutes() / 60 * 30,        minuteDeg = now.getMinutes() / 60 * 360 + now.getSeconds() / 60 * 6,        secondDeg = now.getSeconds() / 60 * 360,        stylesDeg = [            "@-webkit-keyframes rotate-hour{from{transform:rotate(" + hourDeg + "deg);}to{transform:rotate(" + (hourDeg + 360) + "deg);}}",            "@-webkit-keyframes rotate-minute{from{transform:rotate(" + minuteDeg + "deg);}to{transform:rotate(" + (minuteDeg + 360) + "deg);}}",            "@-webkit-keyframes rotate-second{from{transform:rotate(" + secondDeg + "deg);}to{transform:rotate(" + (secondDeg + 360) + "deg);}}"        ].join("");    document.getElementById("clock-animations").innerHTML = stylesDeg;})();
Copy after login

哦,千万别忘了在head标签里面放点东西:

<style id="clock-animations"></style>
Copy after login

不然JS生成的样式代码没地方安身啊。

好了,以上代码我已经放在了jsbin上:
http://output.jsbin.com/xeraxe

--

就这些了,献个丑,各位轻拍~ :)

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Is HTML easy to learn for beginners? Is HTML easy to learn for beginners? Apr 07, 2025 am 12:11 AM

HTML is suitable for beginners because it is simple and easy to learn and can quickly see results. 1) The learning curve of HTML is smooth and easy to get started. 2) Just master the basic tags to start creating web pages. 3) High flexibility and can be used in combination with CSS and JavaScript. 4) Rich learning resources and modern tools support the learning process.

What is the purpose of the <progress> element? What is the purpose of the <progress> element? Mar 21, 2025 pm 12:34 PM

The article discusses the HTML &lt;progress&gt; element, its purpose, styling, and differences from the &lt;meter&gt; element. The main focus is on using &lt;progress&gt; for task completion and &lt;meter&gt; for stati

The Roles of HTML, CSS, and JavaScript: Core Responsibilities The Roles of HTML, CSS, and JavaScript: Core Responsibilities Apr 08, 2025 pm 07:05 PM

HTML defines the web structure, CSS is responsible for style and layout, and JavaScript gives dynamic interaction. The three perform their duties in web development and jointly build a colorful website.

What is the purpose of the <datalist> element? What is the purpose of the <datalist> element? Mar 21, 2025 pm 12:33 PM

The article discusses the HTML &lt;datalist&gt; element, which enhances forms by providing autocomplete suggestions, improving user experience and reducing errors.Character count: 159

What is the purpose of the <meter> element? What is the purpose of the <meter> element? Mar 21, 2025 pm 12:35 PM

The article discusses the HTML &lt;meter&gt; element, used for displaying scalar or fractional values within a range, and its common applications in web development. It differentiates &lt;meter&gt; from &lt;progress&gt; and ex

Understanding HTML, CSS, and JavaScript: A Beginner's Guide Understanding HTML, CSS, and JavaScript: A Beginner's Guide Apr 12, 2025 am 12:02 AM

WebdevelopmentreliesonHTML,CSS,andJavaScript:1)HTMLstructurescontent,2)CSSstylesit,and3)JavaScriptaddsinteractivity,formingthebasisofmodernwebexperiences.

What is an example of a starting tag in HTML? What is an example of a starting tag in HTML? Apr 06, 2025 am 12:04 AM

AnexampleofastartingtaginHTMLis,whichbeginsaparagraph.StartingtagsareessentialinHTMLastheyinitiateelements,definetheirtypes,andarecrucialforstructuringwebpagesandconstructingtheDOM.

Gitee Pages static website deployment failed: How to troubleshoot and resolve single file 404 errors? Gitee Pages static website deployment failed: How to troubleshoot and resolve single file 404 errors? Apr 04, 2025 pm 11:54 PM

GiteePages static website deployment failed: 404 error troubleshooting and resolution when using Gitee...

See all articles