I try to keep my projects simple, client-sided, and self-contained. The way this page is set up isn't perhaps the best practices for the modern web, but you can download just the html file and it'll probably still work in 30 years time.

Hey, but at least we have rounded corners now, which is nowhere to be seen in your 2010s <table>-heavy borgmaster summary /s

From the submission CSS file:

    details {
      margin: 5px 5px 5px 12px;
      border: 1px solid #aaa;
      border-radius: 4px;
      padding: 4px;
    }

Not even "designs from 2010" are safe from rounded corners.

(the border-radius CSS property was first proposed in 2002 [!] as far as I can tell: https://www.w3.org/TR/2002/WD-css3-border-20021107/)

No, back then we would use images to make rounded corners. It was… as awful as it sounds…

Triggered!