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WebVTT regions set the areas of the video where captions or subtitles should be rendered, such as placing roll-up captions used for live captions.

Status

Limited availability

MDN documentation

VTTRegion

Specifications

WebVTT: The Web Video Text Tracks Format (#regions), from Timed Text Working Group (W3C).

Browser support

Chrome ❌ See bugs.chromium.org/p/chromium/issues/detail?id=690014
Chrome Android ❌
Edge ❌
Firefox 59 Released on 2018-03-13
Firefox for Android 59 Released on 2018-03-13
Safari 14.1 Released on 2021-04-26
Safari on iOS 14.5 Released on 2021-04-26

Web Platform Tests (WPT)

View the latest WPT test results for this feature

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