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.

Learning resources on MDN

• VTTRegion

Browser support

• Chrome ❌
• Chrome Android ❌
• Edge ❌
• Firefox 59 Released on 2018-03-13
• Firefox for Android 59 Released on 2018-03-13
• Safari 7 Released on 2013-10-22
• Safari on iOS 7 Released on 2013-09-18

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