The subset of a VTTCue's positioning properties computeCueLayout reads. A native VTTCue satisfies this; a plain TextTrackCue (platforms without VTTCue) leaves them undefined and falls back to defaults.
VTTCue
TextTrackCue
Optional
Readonly
The subset of a
VTTCue's positioning properties computeCueLayout reads. A nativeVTTCuesatisfies this; a plainTextTrackCue(platforms withoutVTTCue) leaves them undefined and falls back to defaults.