Calculator App using GRID & Flexbox! Learnt so much

Hi Frontend Mentor community,

Really happy because I learnt so much with this challenge. I'm getting more confidence with my HTML and CSS skills, and learning JS day by day too.

First of all, this challenge forced me too learn really well how the CSS Grid model works. Grid system is pretty neat to develop almost every web page, and really versatile. I learnt to manipulate some new relative units too (fr).

Also, this challenge thought me how to develop a change theme feature and lots of JS!

Really recommended.

Any feedback or comment on the code is really welcome. Looking forward to improve in every app i make.