本帖最后由 轻微生活网 于 2016-3-18 10:23 编辑 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
DEMO
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>
复制代码结构很简单,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%;
- }
复制代码样式文件就这些,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43200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;
- })();
复制代码哦,千万别忘了在head标签里面放点东西:
- <style id="clock-animations"></style>
复制代码 不然JS生成的样式代码没地方安身啊。
HTML+
CSS3再加一点点JS做的一个小时钟 - 优雅的Web - SegmentFault
https://segmentfault.com/a/1190000003055672
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