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Guys, I genuinely need a lot of assistance with my positioning. I doubt there's anything I can't learn in programming but you see positioning, that may be the graveyard of my time learning.

Also, I noticed my designs look completely different in firefox and safari. I use firefox for my live server and when I check my page using safari, some of the positionings are off by a few rems. Any suggestions on overcoming this?

Thanks!! Was about to press 'command S' after typing this hahahaha...