.cpjs1 {    
    margin:0 auto;
    top: 0;
    width: 100%;
    height: 900px;
    background: url("../imgs/chanpin/js/1.jpg");
    background-size: 100%;
    background-repeat: no-repeat;
  }
  .cpjs2 {    
    margin:0 auto;
    top: 0;
    width: 100%;
    height: 900px;
    background: url("../imgs/chanpin/js/2.jpg");
    background-size: 100%;
    background-repeat: no-repeat;
  }
  .cpjs3 {    
    margin:0 auto;
    top: 0;
    width: 100%;
    height: 900px;
    background: url("../imgs/chanpin/js/3.jpg");
    background-size: 100%;
    background-repeat: no-repeat;
  }
  .cpjs4 {    
    margin:0 auto;
    top: 0;
    width: 100%;
    height: 900px;
    background: url("../imgs/chanpin/js/4.jpg");
    background-size: 100%;
    background-repeat: no-repeat;
  }
  .cpjs5 {    
    margin:0 auto;
    top: 0;
    width: 100%;
    height: 900px;
    background: url("../imgs/chanpin/js/5.jpg");
    background-size: 100%;
    background-repeat: no-repeat;
  }
  .cpjs6 {    
    margin:0 auto;
    top: 0;
    width: 100%;
    height: 900px;
    background: url("../imgs/chanpin/js/6.jpg");
    background-size: 100%;
    background-repeat: no-repeat;
  }
  .cpjs7 {    
    margin:0 auto;
    top: 0;
    width: 100%;
    height: 900px;
    background: url("../imgs/chanpin/js/7.jpg");
    background-size: 100%;
    background-repeat: no-repeat;
  }
  .cpjs8 {    
    margin:0 auto;
    top: 0;
    width: 100%;
    height: 900px;
    background: url("../imgs/chanpin/js/8.jpg");
    background-size: 100%;
    background-repeat: no-repeat;
  }