.banner-img {
    width: 480px;
    height: 412px;
  }
  .checkbtn{
    cursor: pointer;
    display: none;
  }
  .check-alert {
    display: none;
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0px;
    left: 0px;
    text-align: center;
    background-color: rgba(0,0,0,0.3);
  }
  .check-alert .check-wrapper {
    width: 440px;
    height: 200px;
    margin: 0 auto;
    top: 50%;
    margin-top: -100px;
    position: relative;
    background: url('./check_bg.png') no-repeat;
  }
  .check-alert .check-close{
    position: absolute;
    width: 30px;
    height: 30px;
    right: 10px;
    top: 10px;
    background: url('./check_close.png') no-repeat;
    background-position: 0 0;
    cursor: pointer;
  }
  .check-alert .check-close:hover{
    background-position: -30px 0;
  }
  .check-alert .check-close:active{
    background-position: -60px 0;
  }
  .check-alert .check-btn{
    position: absolute;
    width: 200px;
    height: 40px;
    left: 120px;
    bottom: 24px;
    background: url('./check_btn.png') no-repeat;
    background-position: 0 0;
  }
  .check-alert .check-btn:hover{
    background-position: -200px 0;
  }
  .check-alert .check-btn:active{
    background-position: -400px 0;
  }
  
  .fix .checkBottomBtn {
    cursor: pointer;
    display: none;
  }
  
  .downType .checkTypeownload {
    cursor: pointer;
    display: none;
  }