Responsive four card feature section css html flexbox grid

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

I am proud of learning how to work with CSS Grid. I managed to create four cards close similar to providing design. Also I found some interesting links about it here.

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

I can't say that I faced with challenges for now.. but maybe with borders, i can't understand how to do the colorful borders like in design.

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

I need help with colorful borders, if you know how to solve it, please, message me :)