How can I resize the video section on my collection page?

Topic summary

Issue: On a Shopify collection page, the video section appears normal, but any uploaded cover (thumbnail) displays extremely large (spanning about two screens), while the actual video remains small.

Context: Link to the affected page was shared. Two screenshots are central to illustrating the mismatch in sizes.

Proposed fix: Add CSS in theme code (Online Store > Themes > More > Edit code, then base.css):

  • deferred-media { padding-bottom: 0% !important; }
  • deferred-media iframe { width: 100% !important; height: 100% !important; }

Current outcome: The CSS change partially improves the issue on mobile, but produces no change on desktop.

Status: Unresolved/ongoing. Desktop sizing still problematic; additional desktop-specific CSS or theme layout adjustments are needed to fully fix the cover/video size alignment.

Summarized with AI on January 11. AI used: gpt-5.

Hey)

https://juzzlejewelry.com/collections/chakra-ring-limited-edition

I have normal size Video section.

but if I download any cover it looks like a big one for 2 screens

How can I fix the size?

Hi @AnaJJ ,

As I understand it, your video thumbnail is very big but your video is very small.

You can use the following solution:

In the Online store, select ThemesMoreEdit code

In the base.css file, add the following code at the end of the file:

deferred-media{
   padding-bottom:0%!important;
}
deferred-media iframe{
   width:100%!important;
   height:100%!important;
}

Hope it helps @AnaJJ

Hey!

Thanks a lot!

But it helped partially only on mobile. But nothing changed on desktop version

https://juzzlejewelry.com/collections/chakra-ring-limited-edition