Is it normal that when you change the margin and padding from a class in mobile view it also affects desktop?

Design help General
1

Hi!
Is it normal that when you change the margin and padding from a class in mobile view it also affects desktop?

And if so how do I solve this because I want to edit the class margin and padding?

Thanks a lot!

Here is my site Read-Only: LINK
(how to share your site Read-Only link)

2

No, it should not.

I don’t know what’s going wrong. Maybe start to set the values for desktop first, even if it’s just confirming the 0 value so it turns blue.

3

https://preview.webflow.com/preview/nadav-keysons-top-notch-project?utm_source=nadav-keysons-top-notch-project&preview=e7467f220039c6dceb53a221d58d2e8b

This is the project, it concerns the section with the three columns, creating a combo class seems to solve it. But could you check what might be causing this?
Thanks!!