Was given some changes a client wanted done on a site that a couple of my predecessors worked on. They were pretty basic so thought, no prob, let's get this done and move on the more important things. Open the 3000 line css file..... no indentation..., syntax errors and warning all over the place and of course no documentation. A convoluted mess. Fixing the errors would basically break the site due to all the unnecessary overwrites. Literally the worst style sheet I've ever seen.