How do I disable a CSS ruleset

so, what I’m doing is trying to delete a ruleset when adding a media query in CSS, but the problem is that i don’t know how? when I shrink the browser i want some items in my webpage not to show up.

Your question is pretty odd, I guess it’s just how you structured your sentence but that’s okay. I’m not too sure on what you want help with but this is what I was able to find online for “how to delete a css ruleset”

Google Link: Reset/remove CSS styles for element only - Stack Overflow

Hope it helped, if not then I apologize, I haven’t wrote css in a while.