A set of small, responsive CSS modules that you can use in every web project.
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A set of small, responsive CSS modules that you can use in every web project. http://purecss.io/

Build Status

Use From the CDN:

<link rel="stylesheet" href="http://yui.yahooapis.com/pure/0.1.0/pure-min.css">


Pure is meant to be a starting point for every website or web app. We take care of all the CSS work that every site needs, without making it look cookie-cutter:

  • A responsive grid that can be customized to your needs.

  • A solid base built on Normalize.css to fix cross-browser compatibility issues.

  • Consistently styled buttons that work with <a> and <button> elements.

  • Styles for vertical and horizontal menus, including support for dropdown menus.

  • Useful form alignments that look great on all screen sizes.

  • Various common table styles.

  • An extremely minimalist look that is super-easy to customize.

  • Responsive by default, with a non-responsive option.

  • Easy one-click customization with the Skin Builder.

  • Extremely small file size: 4.8KB minified + gzip.

Get Started

To get started using Pure, go to the Pure CSS website. The website has extensive documentation and examples necessary to get you started using Pure.

You can include the Pure CSS file in your project by fetching it from Yahoo's CDN:

<link rel="stylesheet" href="http://yui.yahooapis.com/pure/0.1.0/pure-min.css">

Build From Source

Optionally, you can build Pure from its source on Github. To do this, you'll need to have NodeJS and npm installed. We use Grunt to build Pure.

$ git clone git@github.com:yui/pure.git
$ cd pure
$ npm install
$ grunt

Now, all Pure CSS files should be built into the pure/build/ directory. All files that are in this build directory are also available on the CDN. The naming conventions of the files in the build/ directory follow these rules:

  • [module]-nr.css: Rollup of [module]-core.css + [module].css + [module]-[feature].css from the src/[module]/ dir. This is the non-responsive version of a module.

  • [module].css: Rollup of [module]-nr.css + [module]-r.css from the build/ dir. This is the responsive version of a module.

  • *-min.css: A minified file version of the files of the same name.

  • pure-min.css: A rollup of all [module]-min.css files in the build/ dir. This is a responsive roll-up of everything.

  • pure-nr-min.css: A Rollup of all modules without @media queries. This is a non-responsive roll-up of everything.

Note: To save your fingers from The Developer Konami Code: ⌘⇥ ⌃C ↑ ⏎ use the grunt watch task:

$ grunt watch

Contributions and Code Standards

Feel free to file bugs and submit pull requests on Github! When submitting a pull request, please checkout a new feature branch, and submit your pull request from it. Please do not submit pull requests from your master branch.


We use CSSLint for basic testing to make sure we're shipping valid CSS which compiles with standard best practices and rules. To run Pure's test use Grunt:

$ grunt test

Docs and Website

Pure's website is also open source, so please file any issues or pull requests for the docs or website over at the pure-site repo.


Please sign the CLA before submitting pull requests. We can't merge your pull requests unless you have a signed CLA. It's super easy and can be done online. For more information regarding the CLA, please visit the Contribute page.


Pure adheres to Semantic Versioning 2.0.

Browser Support and Testing

Pure is tested and works in:

  • IE 7+
  • Latest Stable Firefox/Chrome/Safari
  • iOS 6.x
  • Android 4.x

Before submitting pull requests, please ensure that you open the test HTML files in these environments. If you don't have access to all these environments, list the ones that you have tested in on the pull request description. That way, we know what's missing, and can help you out.


This software is free to use under the Yahoo! Inc. BSD license. See the LICENSE file for license text and copyright information.