jquery实现倒计时效果_jquery

  
    <meta charset="utf-8">
    <title>手写倒计时程序</title>
    
  
  
    <section class="countDown">
      <span id="countDownTime"></span>
      <section class="clear"></section>
    </section>
    

*{
  margin: 0;
  padding:0;
}
html{
  font-size: 12px;
}
.countDown{
  width: 3.8rem;
  text-align: center;
  margin: 2rem auto 0 auto;
}
.countDown #countDownTime{
  font-size: 2rem;
}