Age calculator app using CSS Flex, Grid, JavaScript

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

• The static webpage was fairly easy to create.
• Implemented the date manipulation in JS without using external libraries.
• Will probably look to make use of them in the future, to save time.

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

• Working out how to properly loop through elements to effectively manipulate the styles.
• Implementing the logical error conditions for different month durations and leap years - I started with the easy scenarios and built up gradually.
• Showing results only when the inputs are correct - added an invalid flag for each and conditioned the displaying to the value of all three flags.

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

Could use a way of refactoring some of the code, my success has been limited in that aspect. I would also like to see a more effective way of animating the results display.