How can I have a frosty glass sticky header with the theme baseline?

Topic summary

A user is seeking help customizing their Baseline theme header to achieve a semi-transparent “frosty glass” effect instead of the current fully transparent design.

Specific requests:

  • Transform the sticky header to have a frosted/blurred glass appearance (between fully transparent and opaque)
  • Add a pop-up feature displaying a cut-out object image

Context:
The user provided reference images showing the desired frosted glass header effect and pop-up style, along with their current website link for comparison.

Status: The question remains unanswered with no responses or solutions provided yet.

Summarized with AI on November 14. AI used: claude-sonnet-4-5-20250929.

Hi !

how can I have a frosty glass sticky header with the theme baseline ?

I now have it in transparent but I would like it to be in between fully transparent and opaque like those photos.

Also how can I add a pup up like this where it is just the cut out of an object ?

xx

thanks !

this is my website now www.yilou-yilou.com