video + track element

Code

<video controls width="300" height="300">
<source src="../images/elo.mp4" type="video/mp4">
<source src="../images/elo.ogg" type="video/ogg">
<track kind="captions" srclang="en" src="../images/elo.vtt" label="English">
</video>

Reference

HTML5 video element

HTML5 track element