Sunnyside Landing Page built with HTML, CSS, Flexbox, and JavaScript

Hi, Here's my solution for the Sunnyside Landing Page. I learned a lot of CSS tricks with this one- like the ::before and ::after pseudo-elements. The dropdown menu was a first for me and it took me a long time to get the shape and then figure out how to also get the menu to close if clicked outside of the menu. I finally got it with some help from the slack channel :) If anyone has feedback on my CSS, especially I would love that. After looking at a lot of other people's code I'm starting to wonder if my CSS stylesheet should get more efficient. Also- with responsive sizing, I tend to use em for font and stick with pixels for padding and margins. I'd love to hear some thoughts on that. Thanks so much!!!