Responsive Tip Calculator App with Javascript

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

I think i made a solid layout with css and really learned how to work with javascript

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

When coding, i wrote the variables inside the functions, wich made my code won't work properly, since the reset button has it's own function and it needed to reset the variables from the inputs.

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

How to handle errors.