QR-CODE SITE html, css (flexbox and mediaquery)

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

Responsive design is always challenging for me and I think I am now more familiar with responsive design.

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

While using mediaquery, I had some issues with breakpoints. It was because I use max-width property in the mediaquery and if I order the width by ascending order, it will always use the largest width breakpoint.

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

I would like to be commented regarding to responsive web design.