camera.camera {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    z-index: -3;
  }
view.buttons {
    background-color: rgba(55, 55, 55, 0.4);
    color: white;
    padding-top: 10px;
    position: fixed;
    bottom: 0;
}
  view.buttons button {
      display: inline-block;
      margin: 5px;
  }

  button.active {
      background-color: green;
  }