VTTCue: vertical property
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since January 2020.
Thevertical property of theVTTCue interface is a string representing the cue's writing direction.
Value
A string containing one of the following values:
""(an empty string)Represents a horizontal writing direction.
"rl"Represents a vertical writing direction growing to the left.
"lr"Represents a vertical writing direction growing to the right.
Examples
In the following example a newVTTCue is created, then the value ofvertical is set to"rl". The value is then printed to the console.
js
let video = document.querySelector("video");let track = video.addTextTrack("captions", "Captions", "en");track.mode = "showing";let cue = new VTTCue(0, 0.9, "Hildy!");cue.vertical = "rl";console.log(cue.vertical);track.addCue(cue);Specifications
| Specification |
|---|
| WebVTT: The Web Video Text Tracks Format # dom-vttcue-vertical |