interface HTMLElement {
webkitRequestFullScreen(options?: FullscreenOptions): Promise
mozRequestFullScreen(options?: FullscreenOptions): Promise
msRequestFullscreen(options?: FullscreenOptions): Promise
}
interface Document {
webkitFullscreenElement: Element | null
mozFullScreenElement: Element | null
msFullscreenElement: Element | null
webkitCurrentFullScreenElement: Element | null
mozCancelFullScreen(): Promise
webkitExitFullscreen(): Promise
msExitFullscreen(): Promise
}