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VTTCue: vertical property

The vertical property of the VTTCue 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 new VTTCue is created, then the value of vertical 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 cue1 = new VTTCue(0, 0.9, "Hildy!");
cue1.vertical = "rl";
console.log(cue1.vertical);

track.addCue(cue1);

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
vertical 23 79 31 No 15 6 4.4 25 31 14 8 1.5

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https://developer.mozilla.org/en-US/docs/Web/API/VTTCue/vertical