XF 2.3 Video on page

[Seeker-Smith]

How do you folks handle the sizing of videos from desktop and mobile?

I'm using this code which is fine for desktop but mobile not so much.

<p align="center">
<video width="640" height="480" controls>
<source src="/public/01b.mp4" type="video/mp4">
Your browser does not support the video tag.
</video>
</p>