Fair enough. This seems like CSS Positioning 201 to me, but I've been dealing with this stuff for a long time now, so my perspective is probably pretty skewed.

Fair enough. This seems like CSS Positioning 201 to me, but I've been dealing with this stuff for a long time now, so my perspective is probably pretty skewed. I completely agree with your point re: cognitive processing: good CSS communicates intent to the reader, so if this kind of stuff is unclear to people and the Smashing Mag post helps the concept click in readers' minds, then it's a win :)