3-card component CSS Improvement

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

I tried adding only adding the necessary CSS, to make it cleaner.Thanks to the community for pointing it out

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

Although this is basic, but I had to set width of the container component to 900! Which I think is excessive to add, so if anyone can point what would be the alternative to this

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

All feedback is welcome!