CMS Design System Sass/CSS and React assets

Usage no npm install needed!

<script type="module">
  import cmsgovDesignSystem from 'https://cdn.skypack.dev/@cmsgov/design-system';


This package contains the following design system assets:

  • Base styles
  • Utility classes
  • Sass/CSS and React components
  • Responsive flexbox grid framework
  • Fonts and images
  • Sass mixins and variables


npm install --save @cmsgov/design-system


The source files included are written in Sass (.scss). You can add your node_modules directory to your Sass includePaths and import the file like this:

@import '@cmsgov/design-system/dist/scss/index';

or import the transpiled CSS:

@import '@cmsgov/design-system/dist/css/index';

Please view the documentation site for additional information.


Examples of the design system in use can be found in the examples directory on GitHub.

Bugs and contributions

Please submit an issue on GitHub for any bugs or feature requests.

You can also read our CONTRIBUTING.md document to learn about setting up a local development environment, contributing to the design system, and our coding guidelines.

File Structure

The design system follows a variation of ITCSS (Inverted Triangle architecture for CSS). The goal is to write CSS in specificity order.

└── @cmsgov/design-system/dist
    ├── components/
    │   └── index.js        Compiled JS entry point (CommmonJS)
    ├── css/
    │   └── index.css       Compiled CSS entry point
    ├── esnext/
    │   └── index.esm.js    Compiled JS entry point (ES Module)
    ├── fonts/
    ├── images/
    ├── scss/
    │   ├── base/           Base styles, HTML element selectors
    │   ├── components/     Component styles
    │   ├── settings/       Variables, mixins, and functions
    │   ├── utilities/      Utility classes for individual CSS properties
    │   └── index.scss      Precompiled SCSS entry point
    └── types/              Typescript definition files