Tip calculator app with validation

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

I like that this project is actually helpful and that I could use it in my day-to-day life.

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

I tried to use the DRY principle but still need more practice. I used type='text' on the inputs so I could do the validations myself. It was hard, and I still need more practice with that too.

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

I'd like some tips or suggestions for improvements on the project.