CSS Framework

tailwindcss.com

Tailwind CSS is a highly customizable, low-level CSS framework that gives you all of the building blocks you need to build bespoke designs without any annoying opinionated styles you have to fight to override.

bulma.io

Bulma is a free, open source CSS framework based on Flexbox and used by more than 200,000 developers.

getbootstrap.com

Build responsive, mobile-first projects on the web with the world’s most popular front-end component library.

MUI

MUI is a lightweight CSS framework that follows Google's Material Design guidelines. MUI is designed from the ground up to be fast, small and developer-friendly.

pioccss

A minimal CSS framework for building responsive websites. It's based on Flexbox and built with Sass.

getskeleton.com

A dead simple, responsive boilerplate. Skeleton is a tool for rapid development. It empowers designers and developers to build better and easy-to-use interfaces with an intuitive 12 column grid.

get.foudation

The most advanced responsive front-end framework in the world. Foundation is a family of responsive front-end frameworks that make it easy to design beautiful responsive websites, apps and emails that look amazing on any device.