Mountaintop Corners: A List Apart

Started reading this thinking he'd come up with some clever CSS trick like the breakthroughs into geometry made with borders a while ago (culminating with CSS House). But no, it's just the ragged transparent gif rounded corner thing, Jon did that two years ago at work. It's nice to see it taken main stream, it's a fairly versatile technique (although I don't like the fixed-width take) but it's nothing new.

Side note: never ever comment on A List Apart. The people who comment there are so stupid. Now I've been trying to be a little less of an elitist snob (outwardly at least, and only when I need to get work out of people) but the reactions to this simple article are so outright imbecilic I was a little taken aback.