Building a QR code component using HTML/CSS

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

I am proud that I was able to complete the challenge. I would try to avoid using when it's not necessary to build good semantic HTML habits

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

I had some problems writing the CSS Flexbox & Grid as I haven't learned it yet so I had to read a few documentations and watch a couple of Flexbox & Grid explanation videos to write it.