https://www.w3.org/WAI/WCAG21/quickref/?showtechniques=122%2C123%2C125%2C127%2C134%2C111#audio-only-and-video-only-prerecorded https://www.mediaelementjs.com/ Annotate webvtt with a `describing` motivation.
https://www.w3.org/WAI/WCAG21/quickref/?showtechniques=122%2C123%2C125%2C127%2C134%2C111#audio-only-and-video-only-prerecorded
https://www.mediaelementjs.com/
Annotate webvtt with a
describingmotivation.