How to block an individual Div with ads?

Question

Ad blocking

Hey!
I would like to cut ads on the background, from one well-known tracker,
i.e. all the pop-up *bar is blocked, but the background does not work, it costs ublock origin (chrome), but the pipette does not work or it works, but then o5 appears, I was looking for different solutions ala adblock, but without results, I remember that there was some kind of blocking extension at the class level in css, but could not find and remember it.
Advise something worthwhile friends.
UPD: Googling found the Quick Javascript Switcher extension, seems to be blocked...

Answer 1

jQuery:
$(".you_class").text("");