code: function requestFullScreen(element) {
    if (element.requestFullscreen) {
      element.requestFullscreen();
    } else if (element.msRequestFullscreen) {
      element.msRequestFullscreen();
    } else if (element.webkitRequestFullscreen) {
      element.webkitRequestFullscreen();
    }
  }
docs: Request to fullscreen an element.
  @param {HTMLElement} element Element to request fullscreen