All solutions

Well, I think it was a very enriching experience overall. I'm not sure a lot of the issues were fixed in the best way, and I even resorted to javascript for some of them. That said, satisfied with the result. PS: I like to generate another breakpoint in addition to the one requested for other tablet devices.

I ended up using some js for final touchs, I was hoping I'd only use CSS but I can't figure out how change the margin beetween clicks. Im not fully happy with the results, 'cause to me is a little messy, specially with the addition of Js. Any review is more than welcome.

I had some difficulty re-understanding container centering issues, as well as choosing between margins and padding. I don't think using padding in the end was the best possible practice.