Social Media links responsive layout with flexbox

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

I feel like I'm getting better at organising my CSS, which used to be quite a mess before. Next time I may experiment with a naming convention such as BEM.

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

The primary challenge for me was to figure out where to have fixed widths. I wasn't sure if it should be on the button, and the card should be responsive, or if the card should have a fixed with and the buttons fill the width. Ultimately I settled on the latter, but I need to look into what the standard practice is.

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

I'd primarily like feedback on the challenges I encountered above.