3-column preview card component w/ flex-box & grid

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

I'm proud of getting the solution pretty close to the provided template. Next time I might do the whole thing via flex-box.

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

Centering the grid. I made it work by putting display: flex on the main element, but I had really wanted to get the same result by putting a separate container around my grid, I wasn't able to get that to work no matter what I tried.

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

Any feedback is welcome :)