Change site margins on a specific page

Hi everyone,

I want to remove the site margins (set to 0vw) for a specific section. The advice so far I've found on search hasn't worked. Here's the mockup of the setup I have: 

Site: https://lynx-haddock-7k4d.squarespace.com/
Password: "help"

I've tried setting the content-wrapper padding and margin to 0, but the master site margin seems to be the culprit. Any help would be appreciated.

THAT WORKS! Thank you!

A note: After the code goes in, I needed to go into the WYSIWYG editor to move the blocks straight to the margins. Other than that, it works like a charm!

Hi, I tried this. But didn't work for me. Any help? Thank you!

15 hours ago, PRHG said:

Hi, I tried this. But didn't work for me. Any help? Thank you!

Did you use your sectionID?
Might wanna share the site.