Responsive landing page using flexbox and a media query

What are you most proud of, and what would you do differently next time?

I am proud of how i created this solution really fast, compared to the previous form challenge i made.

What challenges did you encounter, and how did you overcome them?

I think that the main challenge was making it validate that the email you give is correct, but it wasn't that hard actually.

What specific areas of your project would you like help with?

Maybe optimizing my JS