Bootstrap - Simple and flexible HTML, CSS, and JS for popular UI components and interactions
Element UI - A Desktop UI Library. Element, a Vue 2.0 based component library for developers, designers and product managers.
ThumbZilla - Awesome thumb stomping and kicking action game.
Tailwind CSS - A utility-first CSS framework for rapidly building custom user interfaces.
Susy - Susy: un-obtrusive grid system for designers, built on Compass and Sass
Material UI - A CSS Framework and a Set of React Components that Implement Google's Material Design