Responsive newsletter sign up with success message main with flexbox

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

I'm proud in the fact this was my first formulary made it in a formal web page, and it was not easy.

I will do different the URL of the images, adding the root folder manually, if not, the images not load.

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

The JS was difficult. I spend time figure out how to fix it.

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

Any comments are welcome.