VTTCue: size 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.

The size property of the VTTCue interface represents the size of the cue as a percentage of the video size.

Value

A number representing the size of the cue as a percentage of the video size.

Examples

In the following example a new VTTCue is created, then the value of size is set to 50. 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.size = 50;
console.log(cue1.size);

track.addCue(cue1);

Specifications

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

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
size

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support