Four card feature section

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

I think my solution looks a lot like the design provided. I'm particularly proud of the use of flexbox for the cards. What i could do different next is that I perhaps would replace flexbox with grid.

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

I had the most trouble getting the size of cards the same using flexbox. I had to look some things up using MDN Docs. I also had trouble with the color of the body background. The grey and white colors provided didn't seem to match the background color in the design. I decided to go for white because this was the color that came closest.

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

I would like some tips on my code (HTML & CSS). Maybe there are things I could have done different or code that I could have written shorter.