Demo a 2nd method of putting variously-styled msg(s) on a video's screen
Inspiration came from Ian Devlin ::
view his demo here [ Tho, Firefox drops this ball...Edge, too. (sigh) ]
[ (Browser-industry support for a secondary dynamically-created concurrent caption/subtitle seems limited to Opera and Chrome. (Firefox v61 fails.) ]
Enter some text for a "display-this-for-next-5-seconds-of-video" screen msg:
Notice: Dragging progress-button back over video, redisplays the data (track-deletion at video-end should resolve that.)
NOTE: The good news is that THIS kind of special text also appears in 'full-screen' mode, too. ;^)