How to set a section background video to dynamically resize when the viewer drags the browser window smaller?

[Trai]

Hi,

I'm trying to set a big hero background video clip in a section on a page, but the video will not resize when I drag the browser smaller. I see there's settings for still images for dynamic resizing, but not for video.

I'm in Elementor Pro using the Hello theme and have tried Vimeo links and self hosting links, but the video just stays large when I resize the browser smaller.

Thanks!