PurgeCSS : PurgeCSS is a tool to remove unused CSS. It can be part of your development workflow.
CSS Sprite Generator : This tool allows you to automate the process of generating CSS sprites. Simply give it a ZIP file containing 2 or more images (GIF, PNG or JPG) and it...
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.
Compass : Compass is an open-source CSS Authoring Framework.
AOS : Animate On Scroll Library.
Small library to animate elements on your page as you scroll.
PostCSS plugin to parse CSS and add vendor prefixes to CSS rules using values from Can I Use.