Ok, this project took me a while doing it. Responsiveness was a real hard thing to achieve and I still think it could be better, but i must move on.
So, i would be very gratefull for your feedback.
Dont worry if you dont have the time to do a full review, just a line or two is great!
Edit: here it is: https://codepen.io/fredval/full/OJyoGZv