adding a background video in a ktor website

I want to add a video background into my ktor website but I don't now how to define it.
The html code I want to convert into ktor:

<video autoplay loop muted playsinline src="../resource/media/video/background/banner.mp4"></video>

but I've tried everything but i don't now how to do it
(and do I need to put "../" in front?)