98.css – A design system for building faithful recreations of old UIs

NB, that style does not play well with non-native DPI (e.g. when you have monitor set to 150% scale); to see it mapped to physical pixels, try running this in the browser's console:

    with(document.documentElement.style){
      transform = `scale(${ 1 / devicePixelRatio })`;
      transformOrigin = 'top left';
    }

(multiply the scale by whole number to get it "crisply zoomed").

Still not 100% perfect, but much closer to intended rendering, I guess.