HTML5 video has the same syntax as HTML5 audio, but tends to have greater engagement with visitors..

As a proof of concept, we used JavaScript/DOM to add the controls="controls" to the video tag and it … It is the Boolean value. The video control should include: Play; Pause; Volume; Full-screen Mode; Seeking; Captions/Subtitles(if available) A few video features aren't available with HTML5 video. The HTML

If it does, it is safe to assume that HTML5 video is supported so the default controls are promptly disabled in favour of our custom controls..