Newsletter sign-up form Practise

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

I proud of I created ordered and clean HTML structure, so I didn't get difficulty in developing css and js.

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

While developing mobile responsive design, I encountered some issues about bottom button. But I handled it thanks to css codes.

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

I need to get help some places on js code. In error status (sending empty input) my error label doesn't seem dynamically.