Responsive Fylo landing page (First time using REM and EM)

I felt pretty confident about the project, although I could have reduced the amount of CSS by probably 50-60 lines if I took the mobile-first approach. I was more worried about learning how to use REM and EM units for websites. I think I used the REM and EM units right. For the next challenge, I will attempt a mobile-first approach to get used to having to visualize how it will effect both the desktop and mobile phones at the same time.