This site was down for a couple weeks and it really brought home just how often I visit. I was reduced to looking up archived versions on the Wayback Machine, a circumstance which I’d chalk up to its being a very thorough guide to :nth-child and my brain refusing to memorize how to write negative ranges no matter how often I use them. 

I’m surprised I’ve never linked to it before but it’s back now and I promise never to take it for granted again.