Help on background creation

Question:
Setup Vertical block slices for portfolio site

Product:
Wix Editor Studio

What are you trying to achieve:
I would like to setup my page to have 3 vertical blocks(desktop), 2 sides being shorter in width and the middle block to be compatible for mobile usage (and the 2 sides to disappear). I could do this similarly with wix editor when the borders for phones would be shown.

I’ve been playing around with grids however the grid will still come over for mobile usage.

Additional information:
I have found this elsewhere (samples listed), I can’t seem to find an option within Wix Studio editor, I imagine its just behind a layout setting or something I have not seen yet
https://www.petervesti.com/

You can hide the side grids on mobile editor.

ah like deleting when you go into mobile view cool will try that

Seems you might also be referencing max-width.

I’d recommend checking out this article - Studio Editor: Setting the Site's Max Width | Help Center | Wix.com