basscss Bower gulp npm

Low-level CSS Toolkit


Low-level CSS toolkit

Modular CSS toolkit based on OOCSS principles

Basscss is a lightweight collection of base element styles, utilities, layout modules, and color styles designed for speed, performance, and scalability.


Designed for Design

With simple, humanized naming conventions, Basscss is quick to internalize and easy to wrap your head around, while striking a balance between consistency and flexibility.

Responsive by Default

The web is inherently flexible, Basscss doesn’t break that tradition and provides lightweight solutions to design for all devices.


Basscss doesn’t dictate what your site should look like. With extensible base styles and variables for typography, white space, breakpoints, and UI elements, customizing the look and feel is easy.

Mix and Match

With modular styles that work like building blocks, Basscss provides a foundation of reusable and inter-operable styles for greater freedom when designing in the browser.

Learn more at

Getting Started

Download or install Basscss from one of these sources:

git clone
npm install basscss
bower install basscss


<link src="" rel="stylesheet">

Folder Structure

  • src: Uncompiled Rework CSS source files
  • css: Compiled CSS files
  • scss: Compiled Sass partials
  • tasks: Files for Gulp build process
  • docs: Files for site


View the full documentation with inline examples:

Guide to Web Design Basics

Design Principles

MIT license

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Top Contributors

jxnblk mrmrs cvrebert tylerhowarth johnotander myobie olimart teddyzetterlund clintonhalpin


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