Black bars on the side of videos on my product page?

[pinkcatflower]

Hi everyone!

I recently added a video to one of my product pages (uploaded directly to the product page). It's in the same aspect ratio as all my product photos (2:3). It looks fine on the thumbnail preview, but when you bring it up in the viewer, ugly vertical black bars appear on the left and right side of the video.

I am using a paid theme - Responsive by Out of the Sandbox.

How can I change those bars to white?

Thanks!

[Anonymous]

Hi @pinkcatflower 

Aibek is here from Speedimize.io agency.

Can you share with us the URL of your shop? 

So we can help you.

[pinkcatflower]

Hi, my shop URL is forgetmenotpatterns.com
Thanks!
Jo