Set of CSS components based on Tailwind CSS

Various CSS layout patterns

Documentation for the Tailwind CSS framework.

Learn CSS Grid

Semantic offers complete design freedom. High level variables and an intuitive inheritance system lets you change the look and feel of your components with just a handful of lines.

Material Design is a specification for a unified system of visual, motion, and interaction design that adapts across different devices. The material design project for Angular is a complementary effort to the Polymer project's paper elements collection. Our goal is to provide a set of AngularJS-native UI elements that implement the material design system.

Free and open source, Ionic offers a library of mobile-optimized HTML, CSS and JS components, gestures, and tools for building highly interactive apps. Built with Sass and optimized for AngularJS.

And what if we got together a bunch of experts who work on large sites to create a definitive front-end performance guide?