Back to Basics - Feature Section with plain CSS

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

Overall, pretty happy with this as it's the first time I've written something with pure CSS in a long time. I feel like the semantics in the markup are pretty solid - images are purely decorative so have handled this with a blank alt attribute, and have utilised sections to semantically group each chunk of information.

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

Initially, I tried using border-top to add the coloured stripes to the top of the cards, but found that doing this made it curve with the border-radius applied to the card itself. I ended up using pseudo elements to stop this from happening while avoiding shoving pointless divs into the DOM.

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

If there is anything I have done redundantly in CSS, or any way I could improve how it is written for readability, please let me know!