I've never heard anyone call it "min margins" before. It's negative not minimum, and it makes debugging someone else's code very difficult. I've worked on sites that use the trick extensively and it's a crapshoot as to which element you get when you click "inspect"!
Told you it would get you dirty looks to use it. ✌️
English is not my first language FYI, in Dutch we use it as minus. I have no problem inspecting the right element though, cmd shift c and click the button ;). I would get you having some trouble inspecting the expanded clickable pseudo elements. These examples aren’t meant to be pretty, it’s why I call them dirty tricks ;)
We're a place where coders share, stay up-to-date and grow their careers.
We strive for transparency and don't collect excess data.