It is, but it also illustrates the problem of drawing a simple diagram for the web. It was in response to user mattmanser's illustration of diabolical nested ta

It is, but it also illustrates the problem of drawing a simple diagram for the web. It was in response to user mattmanser's illustration of diabolical nested tables and user einar's nested divs. HTML is problematic for anything complex. I suppose the best way to represent the data is to not use HTML at all, but instead use an image (SVG? for scalabilty) or a big PDF that opens a new tab? I googled for a solution that I could add to and maintain myself and this was what The Internet threw up as the best solution, but it is far from good.