Frontend Mentor QR Code Component Challenge Using Flexbox

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

I'm proud that I'm getting better with CSS, but one thing I will do differently is to really breakdown the design before writing even a line of code.

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

I had an issue with units. Initially, I used % for my width and it messed up my work. I eventually used rem and everything worked fine.

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

What determines the choice of CSS units (rem, em, px, ch, vh, vw etc.)?

Thanks.