Four cards created with flexbox and scss

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

To display the cards in the correct position using flexbox and did the project in a short time.

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

To position the cards with different positions in desktop size. To apply different border-top colors for each card because I had two cards in a wrapper and it didn't work,

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

How to improve code efficiency.