Anyone care to explain how this works? It can't just be an endless array of divs, can it?
There is an endless array of divs which is absolutely positioned, ie:
<div id="container" style="top: -2920px"> <!-- endless array of divs --> </div>
The actual scrolling is performed by a 'dummy' div, has the same overflow. Some javascript will be listening to scroll events on this div, and updating the position of the above div.
This is typically done as scrolling 'floating' images on most browsers isn't smooth, & to 'jump' the scroll the correct amount to achieve the effect.
(disclaimer: I don't actually know any html, just how to click 'view source' in Chrome)
That's a bit strange for someone that visits hacker news!
Some of them are painters.