Responsive | Flexbox and Grid | Mobile First

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

I had some trouble with deciding on how to do the staircase type layouts. I am still not sure if I used the best way.

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

Please check the ratings section and the reviews section for the desktop view and let me know if you have a better way to achieve the staircase type layouts.

OfCourse, any other suggestions to improve the code is welcome.