🍿 A cross-browser library of CSS animations. As easy to use as an easy thing.

Skeleton: A Dead Simple, Responsive Boilerplate for Mobile-Friendly Development

A showcase of problems once hard or impossible to solve with CSS alone, now made trivially easy with Flexbox.

Low-level CSS Toolkit – the original Functional/Utility/Atomic CSS library

Patterns for using flexbox CSS to build awesome UI components.

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.

Sass-based CSS Architecture

Warn developers about improper selector usage

A flex-box grid that is simple to extend and maintain. Simplicity is the key.