close {
      position: absolute;
      top: 10px;
      right: 10px;
      cursor: pointer;
    }

    #menu1,
    #menu2 {
      width: 1440px;
    }

    #menu1 {
      background: rgba(0, 0, 0, .8);
      color: white;
      height: 50px;
      line-height: 50px;
    }

    #menu2 {
      background: white;
      height: 400px;
      line-height: 60px;
    }

    #prev,
    #next {
      text-align: center;
    }

    #layer_main {
      transform: translateZ(0px);
    }

    #layer_menu {
      transfo