QR Card using basic HTML and CSS

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

My first challenge here. I am kinda proud that I am able to replicate the design even though maybe not really close. I would love to try using other framework other than basic HTML and CSS.

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

To match it as close as possible to the design is pretty hard, especially centering a div on the screen.

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

Any feedback that can help me improve would be great, especially on how to write clean code or how to make responsive website.