It’s really easy to find yourself wondering how your CSS got to be such a mess. Sometimes it’s the result of sloppy coding from the start, sometimes it’s because of multiple hacks and changes over time. Whatever the cause, it doesn’t have to be that way. Writing clean, super-manageable CSS is simple when you start off on the right foot and make your code easier to maintain and edit later on. Here are 11 tips for speeding up the process, writing CSS that is slimmer, faster and less likely to give you a headache. 1.