Summary: We are going to support ::cue(with no argument) pseudo-element for webvtt. It allows styling the webvtt subtitle/caption text during video playback.
Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1318542 Spec: https://w3c.github.io/webvtt/#the-cue-pseudo-element Platform coverage: All platforms Estimated or target release: Firefox 55 Preference: media.webvtt.pseudo.enabled, default is true. DevTools bug: None. Do other browser engines implement this? Yes, chrome, safari, opera Web Developer Use-Cases: write the ::cue style block in the document, then ::cue rules will be applied to the .vtt subtitle. Note that the ::cue style block can only appear in document, not in vtt file (not support yet). <style> ::cue { ... } </style> <video v> <track src="subtitle.vtt"> </video> Tests: web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/* Tests under the folder are disabled now, I'm going to enable/fix them. _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
