CSS Animation Library for eccentric web developers.
Ink provides the same component-based UI building experience that React offers in the browser, but for command-line apps. It uses Yoga to build Flexbox layouts in the terminal, so most CSS-like props are available in Ink as well. If you are already familiar with React, you already know Ink.
a ridiculously small responsive css framework
98.css is a CSS library for building interfaces that look like Windows 98.
Minimalistic icon library Designed by code, Customizable & Retina-Ready icons — built 100% in pure CSS. Easy integration: Embed, NPM & API
Prettier is an opinionated code formatter. It enforces a consistent style by parsing your code and re-printing it with its own rules that take the maximum line length into account, wrapping code when necessary.
PurgeCSS is a tool to remove unused CSS. It can be part of your development workflow.
Easy control over your dark mode in a web environment
Support tables for HTML and CSS in emails.
Skeleton: A Dead Simple, Responsive CSS Boilerplate for Mobile-Friendly Development
Blazing fast, zero configuration web application bundler
emotion is a high performance, lightweight css-in-js library that supports both string and object based styles.
A free and modern UI toolkit for web makers based on the popular Bootstrap 4 framework.
Styletron is a universal CSS-in-JS engine built from the ground up for high-performance.
minimal, responsive, style-agnostic CSS framework
A tool for developing responsive websites crazy-fast.
Open sourced : https://github.com/kitze/sizzy
A modern CSS framework based on Flexbox
Milligram provides a minimal setup of styles for a fast and clean starting point. Just it! Only 2kb gzipped! It's not about a UI framework. Specially designed for better performance and higher productivity with fewer properties to reset resulting in cleaner code.
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.
Learn by example: cssreference.io is a free visual guide to CSS. It features the most popular properties, and explains them with illustrated and animated examples.