纯CSS3时钟

﹏ヽ暗。殇╰゛Y 2022-02-25 08:24 265阅读 0赞

一、效果欣赏

纯css3打造精美时钟效果，效果如下图所示，也可看看----[demo][]\-----

![20130507131442266][]

二、难点解析

单独位数数字动画

动画状态的控制

三、实现步骤

1.html架构

<div class="container">
    	
    	<input id="start" name="controls" type="radio" />
    	<input id="stop" name="controls" type="radio" />
    	<input id="reset" name="controls" type="radio" />
    	
    	<div class="timer">
    		<div class="cell">
    			<div class="numbers tenhour moveten">0 1 2 3 4 5 6 7 8 9</div>
    		</div>
    		<div class="cell">
    			<div class="numbers hour moveten">0 1 2 3 4 5 6 7 8 9</div>
    		</div>
    		<div class="cell divider"><div class="numbers">:</div></div>
    		<div class="cell">
    			<div class="numbers tenminute movesix">0 1 2 3 4 5 6</div>
    		</div>
    		<div class="cell">
    			<div class="numbers minute moveten">0 1 2 3 4 5 6 7 8 9</div>
    		</div>
    		<div class="cell divider"><div class="numbers">:</div></div>
    		<div class="cell">
    			<div class="numbers tensecond movesix">0 1 2 3 4 5 6</div>
    		</div>
    		<div class="cell">
    			<div class="numbers second moveten">0 1 2 3 4 5 6 7 8 9</div>
    		</div>
    		<div class="cell divider"><div class="numbers">:</div></div>
    		<div class="cell">
    			<div class="numbers milisecond moveten">0 1 2 3 4 5 6 7 8 9</div>
    		</div>
    		<div class="cell">
    			<div class="numbers tenmilisecond moveten">0 1 2 3 4 5 6 7 8 9</div>
    		</div>
    		<div class="cell">
    			<div class="numbers hundredmilisecond moveten">0 1 2 3 4 5 6 7 8 9</div>
    		</div>
    	</div>
    	
    	<div id="timer_controls">
    		<label for="start">Start</label>
    		<label for="stop">Stop</label>
    		<label for="reset">Reset</label>
    	</div>
    </div>

div\#timer\_controls和input\[name=controls\]用来实现动画的控制，需要用:checked伪类实现。

div.timer是时钟的容器，div.cell用来做数字的容器。

2. 钟表及数字样式

* {margin: 0; padding: 0;}
    
    body{
    	background-color: #084D08;
    	background-size: 60px 60px;
    	background-image: linear-gradient(135deg, rgba(255, 255, 255, .1) 25%, transparent 25%, transparent 50%, rgba(255,255,255,.1) 50%, rgba(255,255,255,.1) 75%, transparent 75%, transparent);
    }
    h1,h2{
    	color: #fff;
    	text-align: center;
    	margin:50px auto;
    }
    .container {
    	padding: 10px;
    	text-align: center;
    }
    
    .timer {
    	padding: 10px;
    	background: transparent;
    	background: linear-gradient(top, #222, #444);
    	overflow: hidden;
    	display: inline-block;
    	border: 7px solid #efefef;
    	border-radius: 5px;
    	position: relative;
    	
    	box-shadow: 
    		inset 0 -2px 10px 1px rgba(0, 0, 0, 0.75), 
    		0 5px 20px -10px rgba(0, 0, 0, 1);
    }
    
    .cell {
    	width: 0.60em;
    	height: 40px;
    	font-size: 50px;
    	overflow: hidden;
    	position: relative;
    	float: left;
    }
    
    .numbers {
    	width: 0.6em;
    	line-height: 40px;
    	font-family: digital, arial, verdana;
    	text-align: center;
    	color: #fff;
    	
    	position: absolute;
    	top: 0;
    	left: 0;
    	
    	/*Glow to the text*/
    	text-shadow: 0 0 5px rgba(255, 255, 255, 1);
    }

网页背景用linear-gradient实现斜纹效果，div.timer需要实现渐变和阴影效果，div.cell和div.number实现数字竖排，只显示一个数字，为回头做数字动画做准备。

3.控制按钮样式

/*Styles for the controls*/
    #timer_controls {
    	margin-top: -2px;
    }
    #timer_controls label {
    	cursor: pointer;
    	padding: 5px 10px;
    	background: #efefef;
    	font-family: arial, verdana, tahoma;
    	font-size: 11px;
    	border-radius: 0 0 3px 3px;
    }
    input[name="controls"] {display: none;}

4.控制动画

/*Control code*/
    #stop:checked~.timer .numbers {animation-play-state: paused;}
    #start:checked~.timer .numbers {animation-play-state: running;}
    #reset:checked~.timer .numbers {animation: none;}
    
    .moveten {
    	animation: moveten 1s steps(10, end) infinite;
    	animation-play-state: paused;
    }
    .movesix {
    	animation: movesix 1s steps(6, end) infinite;
    	animation-play-state: paused;
    }
    
    .second {animation-duration: 10s;}
    .tensecond {animation-duration: 60s;} /*60 times .second*/
    
    .milisecond {animation-duration: 1s;} /*1/10th of .second*/
    .tenmilisecond {animation-duration: 0.1s;}
    .hundredmilisecond {animation-duration: 0.01s;}
    
    .minute {animation-duration: 600s;} /*60 times .second*/
    .tenminute {animation-duration: 3600s;} /*60 times .minute*/
    
    .hour {animation-duration: 36000s;} /*60 times .minute*/
    .tenhour {animation-duration: 360000s;} /*10 times .hour*/
    
    @keyframes moveten {
    	0% {top: 0;}
    	100% {top: -400px;} 
    	/*height = 40. digits = 10. hence -400 to move it completely to the top*/
    }
    
    @keyframes movesix {
    	0% {top: 0;}
    	100% {top: -240px;} 
    	/*height = 40. digits = 6. hence -240 to move it completely to the top*/
    }
    
    @font-face {
    	font-family: 'digital';
    	src: url('DS-DIGI.TTF');
    }

完工! 感谢carbon的 [Make a stopwatch using CSS3 without images or javascript][]。

[demo]: http://gx.zptc.cn/whqet/clock/clock.html
[20130507131442266]: /images/20220225/8b7468115c044518bfacf63df17fc95c.png
[Make a stopwatch using CSS3 without images or javascript]: http://thecodeplayer.com/walkthrough/make-a-stopwatch-using-css3-without-images-or-javascript/