CSS in itself can be pretty difficult even when it’s just one person writing it on a project that is small in scope, but what happens when things get bigger? What naming conventions scale well? How do you work on it with a large team? What are the considerations needed for an open source project or really any project? What tools should be used? I’m going to be answering these and discussing a few other issues that may spring up when working on complex projects. I’m also going to talk about things that might drive you crazy, but don’t actually make an impact on your project.