js+css3实现简单时钟特效

本文实例为大家分享了js+css3实现简单时钟的具体代码，供大家参考，具体内容如下

1.实现了时钟的特效，可以转动，时间准确，画面美观大气；
2.用到了css3的transform: rotate，transform-origin:,伪元素，border-radius，定位，z-index等等

效果如图：

代码如下：

 
 
 
 
 
  
  
  .clock {
  
  width: 400px;
  height: 400px;
  position: relative;
  margin: 40px auto;
  
  border-radius: 50%;
  
  box-shadow: 5px 5px 20px rgba(0, 0, 0, 0.5);
  
  background: #F5DEB3;
  border: 10px solid #FFFF00;
  }
  
  
  .box {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  }
  
  
  .box div {
  width: 0px;
  height: 200px;
  position: absolute;
  left: 200px;
  
  transform: rotate(0deg);
  
  transform-origin: bottom right;
  background: rgba(255, 0, 0, 0.5);
  }
  
  
  .box div i {
  float: left;
  margin-top: 20px;
  margin-left: -10px;
  font-style: normal;
  width: 20px;
  text-align: center;
  font-style: 18px;
  }
  
  
  .box div::after {
  content: "";
  position: absolute;
  background: #484848;
  width: 2px;
  height: 10px;
  left: -1px;
  }
  
  
  .box div.five::after {
  position: absolute;
  content: "";
  width: 4px;
  height: 20px;
  left: -2px;
  top: 0;
  background: #484848;
  border-radius: 0 0 2px 2px;
  }
  
  
  .second {
  width: 1px;
  height: 200px;
  background: red;
  position: absolute;
  left: 200px;
  
  margin-top: 30px;
  z-index: 10;
  transform: rotate(0deg);
  transform-origin: center 170px;
  
  }
  
  
  .second::after {
  content: "";
  position: absolute;
  width: 20px;
  height: 20px;
  background: red;
  border-radius: 50%;
  bottom: 20px;
  left: -10px;
  }
  
  .minute {
  width: 2px;
  height: 140px;
  background: #8b8b8d;
  position: absolute;
  left: 199px;
  margin-top: 60px;
  z-index: 9;
  transform-origin: center bottom;
  transform: rotate(12deg);
  animation: minute 60s linear infinite;
  }
  
  
  .hour {
  width: 6px;
  height: 100px;
  background: #333;
  position: absolute;
  left: 197px;
  margin-top: 100px;
  z-index: 8;
  border-radius: 3px;
  transform: rotate(2deg);
  transform-origin: center bottom;
  animation: minute 60s linear infinite;
  }
 
 

 
 
  
  
  
  
 

 
 

精简版：

 
 
 
 
 
  
  
  .clock {
  
  width: 400px;
  height: 400px;
  position: relative;
  margin: 40px auto;
  
  border-radius: 50%;
  
  box-shadow: 5px 5px 20px rgba(0, 0, 0, 0.5);
  
  background: #F5DEB3;
  border: 10px solid #FFFF00;
  }
  
  
  .box {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  }
  
  
  .box div {
  width: 0px;
  height: 200px;
  position: absolute;
  left: 200px;
  
  transform: rotate(0deg);
  
  transform-origin: bottom right;
  background: rgba(255, 0, 0, 0.5);
  }
  
  
  .box div:after {
  content: "";
  position: absolute;
  background: #484848;
  width: 2px;
  height: 10px;
  left: -1px;
  }
  
  
  .box div.five:after {
  position: absolute;
  content: "";
  width: 4px;
  height: 20px;
  left: -2px;
  top: 0;
  background: #484848;
  border-radius: 0 0 2px 2px;
  }
  
  
  .second {
  width: 1px;
  height: 200px;
  background: red;
  position: absolute;
  left: 200px;
  
  margin-top: 30px;
  z-index: 10;
  transform: rotate(0deg);
  transform-origin: center 170px;
  
  }
  
  
  .second:after {
  content: "";
  position: absolute;
  width: 20px;
  height: 20px;
  background: red;
  border-radius: 50%;
  bottom: 20px;
  left: -10px;
  }
  
  .minute {
  width: 2px;
  height: 140px;
  background: #8b8b8d;
  position: absolute;
  left: 199px;
  margin-top: 60px;
  z-index: 9;
  transform-origin: center bottom;
  transform: rotate(12deg);
  }
  
  
  .hour {
  width: 6px;
  height: 100px;
  background: #333;
  position: absolute;
  left: 197px;
  margin-top: 100px;
  z-index: 8;
  border-radius: 3px;
  transform: rotate(2deg);
  transform-origin: center bottom;
  }
 
 

 
 
  
  
  
  
 

 
 

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持考高分网。