Dead code is never good. As such, whatever the project that you are working on maybe, you should always strive to eliminate code that is no longer in use, as early as possible. This is especially important when developing websites, as unused code will inevitably be transferred to the client and hence result in additional, unnecessary bytes being transferred (although maintainability is also a major concern).
Programmers are not perfect, and we all make mistakes. As such, unused code or style rules are bound to slip past us during development and testing. Consequently, it would be nice if we could establish a safeguard to ensure that at least no unused style makes it past us into production. This is wheregrunt-uncss fits in. Visit https://github.com/addyosmani/grunt-uncss for more.
UnCSS strips any unused CSS from our style sheet. When configured properly, it can, therefore, be very useful to ensure that our production-ready website is as small as possible...