Newsletter Form solution

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

Utilizing the picture tag to switch between images from mobile to desktop. I would do nothing differently really.

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

Making a complex but regex for the email validation and making it work for whichever email. Simple google searches to overcome :).

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

I guess the amount of classList part of my script is a bit much and redundant. Would like to know how to shorten or refactor it to be more readable I guess. Any help would be appreciated! 👍