All solutions

I'd like to know if there is a dynamic way to set the different colors for each summary item? Is this class naming convention ok? Besides that, I'd appreciate any kind of feedback. Thanks! :)

I'm starting to learn CSS and sometimes I'm not sure if it's ok to use absolute units or if I should try to avoid them and always use relative units. In this solution, I tried using relative units for width and height but it was breaking on tablet screens so I ended up using pixels.

Other than that, I would really appreciate any feedback you can give me. I used flexbox and media query to make the page responsive

I had a little difficult to center the element vertically so I'm not sure if the strategy I used is the best one. I'd like to know please if this is ok or there is a better way to do it?