stylefmt : stylefmt is a tool that automatically formats your stylesheets.
Sprite Cow : Sprite Cow helps you get the background-position, width and height of sprites within a spritesheet as a nice bit of copyable css.
Slickmap : Slickmap CSS is a simple stylesheet for displaying finished site maps directly from HTML unordered list navigation. It's suitable for most web sites –...
css.gg : Minimalistic icon library Designed by code, Customizable & Retina-Ready icons — built 100% in pure CSS. Easy integration: Embed, NPM & API