Stupid simple, right? It is! But it’s fun to think about for a few minutes and count a bunch of different ways we could do it. And what do I mean by a line anyway? We’ll mostly talk about a 1px solid horizontal line, but we’ll veer off a little bit and talk about other lines. Can’t CSS draw a line from any point to any point? Not really, actually — unless we get pretty fancy with SVG that is.