The Simpsons in CSS alternatives

Bulma is a free, open source CSS framework based on Flexbox and built with Sass. It's 100% responsive, fully modular, and available for free.

lit is the world's smallest responsive CSS framework. It includes grids, cards, tables, typography, and more... all in under 400 bytes (minified and gzipped)

If the world is your oyster, then the web is your hotdog! Mustard UI was created first as a joke within a small web development team. It then grew to become not only a teaching tool but the starter code for many web projects. The aim is to create a CSS framework that actually looks good. It's still an early concept, but we'd love your thoughts.