Rules in Media Querie have no effect
I'm doing some research on media queries, and I'm having issue with repeated selectors. They don't seem to have effect if they are already set in a given div ID. What do I mean by that?
Let's say we have a div named "wrapper", its background is set to red, in media query I want it to be blue under specific res, but it has no effect. Color remains red when res changes. I'm beginning to wonder why is that? A tip on how to solve this would be great, thanks in advance!