Front-end framework with a built-in dark mode and full customizability using CSS variables; great for building dashboards and tools

awsm.css

Simple css library for semantic html markup

Bonsai CSS - A Utility Complete CSS Framework for less than 10kb

A complete css solution allowing you to build beautifully crafted web interfaces with ease

Bootstrap

The most popular html css and js library in the world

Bulma: Free, open source, and modern CSS framework based on Flexbox

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

Butter Cake - A Modern Lightweight Front End CSS framework for faster and easier web development.

Charts.css

Css data visualization framework

chota - A micro CSS framework

Cirrus CSS

A responsive and lightweight css framework

The most advanced responsive front-end framework in the world. | Foundation

Gralig CSS

Gralig is a modest grayish css library it can be starting point for your css development

GitHub - HeavenMercy/HasserCSS: A lite and flexible CSS framework (Inspired by Skeleton CSS)

A lite and flexible css framework inspired by skeleton css git hub heaven mercy hasser css a lite and flexible css framework inspired by skeleton css

inuitcss

GitHub - material-components/material-components-web: Modular and customizable Material Design UI components for the web

Modular and customizable material design ui components for the web git hub material components material components web modular and customizable material design ui components for the web

Documentation - Materialize

Materialize is a modern responsive css framework based on material design by google

Milligram - A minimalist CSS framework

Milligram a minimalist css framework

Numl.Design – Atomic UI Web Framework

A ui design language ui library of web components and runtime css framework for rapidly building interfaces that follow your design system

Pure

Pure is a ridiculously tiny css library you can use to start any web project

Semantic UI

Semantic empowers designers and developers by creating a shared vocabulary for ui

GitHub - shorthandcss/shorthand: Utility based css framework built with SCSS.

Utility based css framework built with scss contribute to shorthandcss shorthand development by creating an account on git hub

Spectre.css CSS Framework

Spectre css css framework is a lightweight responsive and modern css framework for faster and extensible development spectre provides basic styles for typography and elements flexbox based responsive layout system pure css components and utilities with best practice coding and consistent design

GitHub - jfet97/strawberry: A new flexbox based CSS micro-framework.

A new flexbox based css micro framework contribute to jfet97 strawberry development by creating an account on git hub

TACHYONS - Css Toolkit

Build beautiful responsive readable interfaces

tacit

Css framework for dummies

GitHub - tailwindlabs/tailwindcss: A utility-first CSS framework for rapid UI development.

A utility first css framework for rapid ui development git hub tailwindlabs tailwindcss a utility first css framework for rapid ui development

Tronic247 Material

UIkit

U ikit a lightweight and modular front end framework for developing fast and powerful web interfaces

Unsemantic CSS Framework

Wing

A minimal css framework