CSS3制作秒表效果，以前想都不敢想，但thecodeplayer.com却完美的使用了CSS3中的animation属性制作了一个纯CSS3的秒表计时器的效果，让我们想都不敢想象，曾经需要javaScript的效果，如今使用CSS3的几个属性就完成了。在这个效果中主要是控制时间数字的显示，本例中每个数定的宽度和高度都定死了，其动画实现主要逻辑是通过对数字进行绝对定位，依靠改变数字的“top”属性值来实现时间数字的变更，当关还需要大家计算好他们之间转换的速率。所以说这个例子绝对是一个练习CSS3的animation属性的好例子，你要是掌握了这个例子，我想你对animation会有一个质的认识，希望大家喜欢（^_^）。
HTML CODE
<div class="container">
<!-- time to add the controls -->
<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>
<!-- Lables for the controls -->
<div id="timer_controls">
<label for="start">Start</label>
<label for="stop">Stop</label>
<label for="reset">Reset</label>
</div>
CSS CODE
body{
background: url('wood_pattern.png') repeat;
}
.container {
padding: 50px;
text-align: center;
}
.timer {
padding: 10px;
background: -webkit-linear-gradient(top, #222, #444);
background: -moz-linear-gradient(top, #222, #444);
background: -ms-linear-gradient(top, #222, #444);
background: -o-linear-gradient(top, #222, #444);
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 {
/*只显示一位数字. 高度 = 数字的行高，宽度 = 数字的宽度*/
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;
/*数字发光效果*/
text-shadow: 0 0 5px rgba(255, 255, 255, 1);
}
/*秒表控制器样式*/
#timer_controls {
margin-top: -5px;
}
#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;}
/*Control code*/
/*秒表暂停运转*/
#stop:checked~.timer .numbers {
-webkit-animation-play-state: paused;
-moz-animation-play-state: paused;
-o-animation-play-state: paused;
-ms-animation-play-state: paused;
animation-play-state: paused;
}
/*秒表开始运转*/
#start:checked~.timer .numbers {
-webkit-animation-play-state: running;
-moz-animation-play-state: running;
-o-animation-play-state: running;
-ms-animation-play-state: running;
animation-play-state: running;
}
/*重置秒表*/
#reset:checked~.timer .numbers {
-webkit-animation: none;
-moz-animation: none;
-o-animation: none;
-ms-animation: none;
animation: none;
}
.moveten {
/*使用分步骤来移动数字，10个数字等于10步*/
-webkit-animation: moveten 1s steps(10, end) infinite;
-moz-animation: moveten 1s steps(10, end) infinite;
-o-animation: moveten 1s steps(10, end) infinite;
-ms-animation: moveten 1s steps(10, end) infinite;
animation: moveten 1s steps(10, end) infinite;
/*默认情况下动画是停止不动的*/
-webkit-animation-play-state: paused;
-moz-animation-play-state: paused;
-o-animation-play-state: paused;
-ms-animation-play-state: paused;
animation-play-state: paused;
}
.movesix {
-webkit-animation: movesix 1s steps(6, end) infinite;
-moz-animation: movesix 1s steps(6, end) infinite;
-o-animation: movesix 1s steps(6, end) infinite;
-ms-animation: movesix 1s steps(6, end) infinite;
animation: movesix 1s steps(6, end) infinite;
}
/*同步时间的速率*/
/*每秒十个数字，因此也需要十步*/
.second {
-webkit-animation-duration: 10s;
-moz-animation-duration: 10s;
-o-animation-duration: 10s;
-ms-animation-duration: 10s;
animation-duration: 10s;
}
.tensecond {
/*60 times .second*/
-webkit-animation-duration: 60s;
-moz-animation-duration: 60s;
-o-animation-duration: 60s;
-ms-animation-duration: 60s;
animation-duration: 60s;
}
.milisecond {
/*1/10th of .second*/
-webkit-animation-duration: 1s;
-moz-animation-duration: 1s;
-o-animation-duration: 1s;
-ms-animation-duration: 1s;
animation-duration: 1s;
}
.tenmilisecond {
-webkit-animation-duration: 0.1s;
-moz-animation-duration: 0.1s;
-ms-animation-duration: 0.1s;
-o-animation-duration: 0.1s;
animation-duration: 0.1s;
}
.hundredmilisecond {
-webkit-animation-duration: 0.01s;
-moz-animation-duration: 0.01s;
-o-animation-duration: 0.01s;
-ms-animation-duration: 0.01s;
animation-duration: 0.01s;
}
.minute {
/*60 times .second*/
-webkit-animation-duration: 600s;
-moz-animation-duration: 600s;
-o-animation-duration: 600s;
-ms-animation-duration: 600s;
animation-duration: 600s;
}
.tenminute {
/*60 times .minute*/
-webkit-animation-duration: 3600s;
-moz-animation-duration: 3600s;
-ms-animation-duration: 3600s;
-o-animation-duration: 3600s;
animation-duration: 3600s;
}
.hour {
/*60 times .minute*/
-webkit-animation-duration: 36000s;
-moz-animation-duration: 36000s;
-ms-animation-duration: 36000s;
-o-animation-duration: 36000s;
animation-duration: 36000s;
}
.tenhour {
/*10 times .hour*/
-webkit-animation-duration: 360000s;
-moz-animation-duration: 360000s;
-o-animation-duration: 360000s;
-ms-animation-duration: 360000s;
animation-duration: 360000s;
}
/*------------------------------------------------------------*\
1、动画的逻辑就是给数字使用了绝对定位，改变“top”的属性值；
2、分 和 秒 应该是 '60'而不是 '100'，因此需要创建两个动画；
3、十步十个数字
4、六步六个数字
\*-------------------------------------------------------------*/
@-webkit-keyframes moveten {
0% {top: 0;}
100% {top: -400px;}
/*height = 40. digits = 10. hence -400 to move it completely to the top*/
}
@-webkit-keyframes movesix {
0% {top: 0;}
100% {top: -240px;}
/*height = 40. digits = 6. hence -240 to move it completely to the top*/
}
@-moz-keyframes moveten {
0% {top: 0;}
100% {top: -400px;}
/*height = 40. digits = 10. hence -400 to move it completely to the top*/
}
@-moz-keyframes movesix {
0% {top: 0;}
100% {top: -240px;}
/*height = 40. digits = 6. hence -240 to move it completely to the top*/
}
@-o-keyframes moveten {
0% {top: 0;}
100% {top: -400px;}
/*height = 40. digits = 10. hence -400 to move it completely to the top*/
}
@-o-keyframes movesix {
0% {top: 0;}
100% {top: -240px;}
/*height = 40. digits = 6. hence -240 to move it completely to the top*/
}
@-ms-keyframes moveten {
0% {top: 0;}
100% {top: -400px;}
/*height = 40. digits = 10. hence -400 to move it completely to the top*/
}
@-ms-keyframes movesix {
0% {top: 0;}
100% {top: -240px;}
/*height = 40. digits = 6. hence -240 to move it completely to the top*/
}
@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*/
}
/*Lets use a better font for the numbers*/
@font-face {
font-family: 'digital';
src: url('http://thecodeplayer.com/uploads/fonts/DS-DIGI.TTF');
}
此案例代码来自于thecodeplayer.com，并做过相应的代码处理。
如需转载，烦请注明出处：http://www.w3cplus.com/demo/pure-css3-create-a-stopwatch.html