Video Makes individual item page not responsive?

This only happens on a phone, not on an EMULATED phone on a desktop computer. If I shrink the width of a regular browser window down to phone size…it doesn’t happen. But on Android and iPhone, it happens, and only when the phone is held in portrait mode.

When a listing contains a video, the entire page (including header and footer!) is shrunk down and shifted off to the left 2/3 of the screen, leaving the right 1/3 blank. The video will be full width.

If a listing does not contain a video or if I disable the video portion of the listing, everything is normal, 100% width.

I initially thought that it was just a matter of setting a responsive width on the video, but then the video only takes up 2/3 of the width, just like everything else. That chunk of white space remains.

I’ve been trying to figure out what is causing it, but since I can’t “inspect” on my phone, I’m flying blind.

Have you folks seen this? Do you have any suggestions?

You can see it on https://findaketocoach.com/keto-coaches/canada/ontario/brampton/my-keto-coach/
If you look at any other coach’s record, it is fine. But…you have to look at it on a phone in order to see the problem.

I’d appreciate any help you can give us.