.control {
    position: absolute;
    left: 0;
    z-index: 1000;
  }

  .control.tilt {
    top: 0;
  }

  .control.rotation {
    top: 45px;
  }

  .control.zoom {
    top: 90px;
  }

  .control.zoom button{
    font-weight: normal;
  }

  .control button {
    width: 30px;
    height: 30px;
    margin: 15px 0 0 15px;
    border: 1px solid #999999;
    background: #ffffff;
    opacity: 0.6;
    border-radius: 5px;
    box-shadow: 0 0 5px #666666;
    font-weight: bold;
    text-align: center;
  }

  .control button:hover {
    opacity: 1;
    cursor: pointer;
  }