Useful :nth-child Recipes

I get a little giddy when I come across perfect uses for :nth-child or :nth-of-type read about the difference. The better you understand them, the more css nerdgasms you get to have!In these simple "recipes" really: expressions I’ll arbitrarily use a flat list of list items and randomly chosen numbers. But it should be fairly obvious how to alter them to get similar selections…