Minimalism. Minimalism everywhere. Yeah. If you love minimalism just half as much as I do, here are 20 best minimal CSS frameworks that will help you save time, obviate the need to rebuild basic web foundations from scratch, and hence save oodles of time.
Spectre
Lightweight and responsive and modern CSS framework for faster and extensible development. It provides basic styles for typography and elements, flexbox based responsive layout system, CSS components and utilities with best practice coding and consistent design language.
Layers
This is a CSS framework aimed for practical use cases. It comes with a small footprint and zero bullshit.
Milligram
It 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.
Cutestrap
There are plenty of amazing front end frameworks already, such as, Bootstrap and Foundation. If you’re looking for something feature rich with loads of components, those are both great choices. However, if you’re looking for something in between normalize.css and a full blown framework, meet Cutestrap. Cutestrap is only 8kb of CSS.
Mobi
Focus on the details and provides the best user experience, especially for content-rich webpage. It’s designed for mobile, but also works awesome on desktop.
Hack
Dead simple CSS framework.
Wing
A beautiful CSS framework designed for minimalists.
Sakura
A minimal css framework/theme.
Mini
It aims to provide as much functionality as possible in less than 7KB gzipped. This very small footprint means that your websites and web applications will load faster, while still looking great utilising the modern components we provide!
Pavilion
Pavilion is a simple CSS framework for developers who tend to never use the countless pre-defined UI components other frameworks ship with. If you are looking for a a simple, lightweight and customizable CSS starting point without the bloat, Pavilion might be for you.
Core CSS
Dead-simple responsive grid system. The columns are float-based, and the rows are self-clearing. The breakpoints are logical and evenly-spaced.
Siimple
It is a light, responsive and open source framework for design flat and clean websites. It has built in SASS/SCSS and provides a clean starting point for your web design.
Scooter
SCSS framework built to provide base styles, CSS components, and rapid static prototyping for Dropbox.
Workless
An open source HTML, CSS & JS framework for developing front-end web applications faster.
Responsive
A powerful, accessible, developer friendly framework for building responsive websites.
Kouto swiss
It is a complete CSS framework for Stylus, inspired by great tools like nib, compass, bourbon.
Concise
It provides a solid foundation to stylize your website. It offers an alternative to frameworks like Bootstrap and Foundation, with the difference that Concise only includes the minimum styles required. That does not mean that the features are limited; is possible to use add-ons on top of the core to extend the functionality as required.
Penguin
It is a lightweight and extensible front-end framework built with Sass for kickstarting any web project.
Base
Lightweight and minimal code. Spend less time overriding styles and focus more time on creating beautiful website applications.
Caramel
Simple, modern, responsive website framework. Caramel is fully responsive, meaning you only need to write code once, to have the same results across multiple platforms.
What about Bulma.io and Picnic?
You forgot myresponsee.com and bulma.io