VTTCue.vertical
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. 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

Specification
WebVTT: The Web Video Text Tracks Format # dom-vttcue-vertical

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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Last modified: Mar 25, 2022, by MDN contributors


    
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