CSS Focus, Flex display and CSS media query

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

Happy to get it done at last

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

font size setting but later solve after many guessing

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

CSS styling. I just make it look exactly like what i see but i think there should be a better way than my own