Responsive button links block made using CSS media queries

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

I'm most proud of the responsiveness, as this is my first time doing it in a very long time. I look forward to using it in my future projects.

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

My biggest issue was learning how to add media queries & what exactly they did, but a few good google searches helped me out.

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

I was able to get the hover effect to fade in when hovering, but not to fade out. It worked on my last project so I'm not sure how to get that working. Not the biggest deal, but if you know how to fix it let me know!