Response QR code component challenge using vanilla CSS and HTML

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

The most difficult thing was to write vanilla CSS, as I usually only use tailwindCSS. In addition, there were a few positioning problems with CSS.

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

The writing of vanilla CSS. The solution was to just try it out and read in the documentation how to use what.

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

I would like to understand why I have to set the height and width of the body to 100%, whereas I have already set the HTML to 100vh and 100vw.

It may seem a bit ridiculous, but CSS has never been my strong point, it's more of a try and hope it looks good.