[blattimwind]

Pretty much the same effect is granted to any HTTP version by simply including stylesheets or scripts verbatim into the HTML.

[Piskvorrr]

That's anything but "simple" - you might want to reuse those stylesheets/scripts on other pages as well, for example; if you inline them into HTML, you're now wasting far more bandwidth, as you're unconditionally pushing them with every HTML response.