Write CSS without worrying that overzealous, pre-existing styles will cause problems. MaintainableCSS is an approach to writing modular, scalable and of course, maintainable CSS.
What others say
Quite a few people like it:
“A handy little read on learning how to write modular and maintainable CSS.”
“Finally a good book on how to write maintainable CSS.”
“I actually love everything about this.”