Modern Starter CSS Framework – Mustard UI
Mustard UI is a lightweight, beautiful starter CSS framework for faster modern web app development.
JavaScript & CSS CSS framework
Intuitive Responsive CSS/SCSS Framework – fictoan
A responsive, customizable, modular and open source HTML5/CSS/SCSS framework for creating modern clean web pages and web applications.
1kb Responsive CSS Framework – lit.css
lit.css is a minimal (less than 1kb minified) CSS framework to help you create responsive, pretty clean web app.
Minimal Pure CSS Framework – chota.css
chota.css is a super light, pure CSS framework to help you create responsive, minimal, clean web pages and/or modern web apps.
Responsive And Accessible CSS Framework – Turret.css
Turret.css is a simple, fast extendable CSS library for generating responsive, accessible, mobile-friendly web applications.
Lightweight Responsive CSS Framework – lighter.css
lighter.css is a lightweight, responsive, mobile-compatible CSS/CSS3 framework for modern, cross-platform front-end development.
Modern Versatile CSS3 Framework – teutonic.css
teutonic.css is a versatile, pure CSS/CSS3 Framework to help web developers to build responsive, accessible, modern webpage/webapp.
Minimal Sweet CSS Framework – lemon
lemon is a simple, lightweight, pure CSS front-end framework that helps you create responsive, clean websites and web applications.
Modern CSS Framework For Documentation Pages – Whiteprint.css
Whiteprint is a responsive, flexible, modern, clean CSS/SCSS framework for documentation web pages.
Simple and Lightweight Responsive Grid System – IceCream
IceCream is a dead simple and lightweight CSS/LESS framework for creating a responsive grid layout with ease.