We are going to enable the webvtt region preference soon. It is a very useful feature for the developer/content provider to place the caption in a specific area(region). And in the feature, we can apply css styles on it.
Related Bugs: Bug 1415821 - [webvtt] support multi-line region parsing. Bug 1338030 - [webvtt] implement the region functionality. Bug 1415805 - [webvtt] enable region preference Link to standard: https://w3c.github.io/webvtt/#regions Platform coverage: All platforms Target release: Hopefully, FF59. Preference behind which this is implemented: "media.webvtt.regions.enabled" Do other browser engines implement this? Safari (I need to confirm) Tests: WPT tests Next: 1. The "1smooth scroll up" feature of region we are not implement yet. We need some works to achieve that which required by live caption. Bug 1416143 - [webvtt] region scroll up functionality. 2. cue-region pseudo element Bug 1338031 - [webvtt] implement the ::cue-region pseudo element _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
