原生JS实现幻灯片

效果如下：

代码如下：

 
 
 
 *{ padding: 0; margin: 0; }
 li { list-style: none; }
 .box {
 width: 800px;
 height: 450px;
 margin: 50px auto;
 position: relative;
  overflow:hidden;
 }
 .box span {
 width: 40px;
 height: 60px; 
 display: block;
 position: absolute;
 top: 225px;
 margin-top: -20px;
 cursor: pointer;
 z-index: 1;
 }
 .box #left {
 width: 76px;
 height: 112px;
 background: url('http://www.w2bc.com/upload/201609/20/jiaoben4524/images/buttons.png') no-repeat left 0;
 left: 0;
  margin-top: -66px;
 display: none;
 }
 .box #right {
 width: 76px;
 height: 112px;
 background: url('http://www.w2bc.com/upload/201609/20/jiaoben4524/images/buttons.png') no-repeat right 0;
 right: 0;
  margin-top: -66px;
 display: none;
 }
 .box #txt {
 width: 100%;
 height: 30px;
 background-color: #000;
 opacity: 0.4;
 position: absolute;
 bottom: 0;
 color: #fff;
 line-height: 30px;
 text-align: center;
 }
 #ad {
 width: 4000px;
 height: 450px;
 position: absolute;
 left: -1600px;
 }
 #ad li {
 float: left;
 }
  .box #left:hover {
 background: url('http://www.w2bc.com/upload/201609/20/jiaoben4524/images/buttons.png') no-repeat left -112px;
 }
 .box #right:hover {
 background: url('http://www.w2bc.com/upload/201609/20/jiaoben4524/images/buttons.png') no-repeat right -112px;
 }
 
 
 
 
  
 

 

 

 

 

 

 
 
泪光点点，娇喘微微
 
 
 
 

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