[frik]

It talks about the Steam overlay. Parts of the Steam application were always HTML. First the little known HTML renderer from a defunct company, than Trident and later CEF.

search for HTML: http://www.plastic-warfare.com/SteamUIGray.zip

Funny how the old things stay online. Notice also the cyber cafés menu entry. http://www.steampowered.com/status/game_stats.html