abstract member align: AlignSetting with get, set
abstract member line: LineAndPositionSetting with get, set
abstract member lineAlign: LineAlignSetting with get, set
abstract member position: LineAndPositionSetting with get, set
abstract member positionAlign: PositionAlignSetting with get, set
abstract member region: VTTRegion option with get, set
abstract member size: float with get, set
abstract member snapToLines: bool with get, set
abstract member text: string with get, set
abstract member vertical: DirectionSetting with get, set
abstract member getCueAsHTML () : DocumentFragment