License: Apache-2.0

Language: HTML

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PatternFly reference implementation

This reference implementation of PatternFly is based on Bootstrap v3. Think of PatternFly as a "skinned" version of Bootstrap with additional components and customizations. For information on how to quickly get started using PatternFly, see the Quick Start Guide. If you wish to contribute to PatternFly, please follow the instructions under "Contributing to PatternFly".


Install with NPM

PatternFly can be installed and managed through NPM. To do so, either add patternfly as a dependency in your package.json or run the following:

npm install patternfly --save

PatternFly stays up to date with the Node LTS Release Schedule. If you're using PatternFly downstream, we suggest the use of an actively supported version of Node/NPM, although prior versions of Node may work.

Install with Bower

PatternFly can be installed and managed through Bower. To do so, either add patternfly as a dependency in your bower.json or run the following:

bower install patternfly --save

Using Wiredep?

Are you using Wiredep? PatternFly's CSS includes the CSS of its dependencies. As a result, you'll want to add the following to your Wiredep configuration so you don't end up with duplicate CSS.

exclude: [

Sass and/or Rails

A Sass port of PatternFly is available, as is a Sass-based Rails Gem.


A set of common AngularJS directives for use with PatternFly is available.

Contributing to PatternFly

The following sections provide information on how to get started as a developer or designer in the PatternFly codebase. In order to set up your environment, two different types of dependencies will need to be set up. Please follow the instructions under "Development - Build Dependencies" (Node.js/Ruby) and "Development - Code Dependencies" below. If you wish to use PatternFly in your project, please follow the Quick Start Guide instead.

Development - Build Dependencies

Development setup requires Node.js and Ruby. If you do not already have Node.js, npm, and Ruby installed on your system, see and

Development - Code Dependencies

The PatternFly code includes a number of dependencies that are not committed to this repository. To add them, follow the instructions below under "Install NPM Dependencies". Please make sure you keep them updated (see Keeping NPM Dependencies Updated).


Patternfly uses Autoprefixer to auto add prefixes to its output CSS. Since Patternfly extends some of the core Bootstrap3 less which contains prefixes, we also explicitly add prefixes in these cases to ensure backwards compatibility with Bootstrap3. If consuming Patternfly LESS and compiling, you can define your own target prefixes using browserlist.

Install NPM Dependencies

The development includes the use of a number of helpful tasks. In order to setup your development environment to allow running of these tasks, you need to install the local nodejs packages declared in package.json.

To do this clone, and change directories into PatternFly:

cd [PathToYourRepository]


npm install

This should take care of the majority of dependencies.

Since PatternFly is shrink wrapped, npm 3 will install all necessary development packages into node_modules/patternfly/node_modules. At this point, the gruntjs tasks are available for use such as starting a local development server or building the master CSS file.

If you prefer a flat dependency structure, you can define your own dependencies explicitly. That will flatten out the node_modules structure and place dependencies in the root node_modules directory.

Additionally you may need to install the grunt command line utility. To do this run:

npm install -g grunt-cli

Test pages are optionally generated using Jekyll. To use jekyll to build the test pages, ensure Ruby is installed and available then run:

npm run jekyll


gem install bundle
bundle install

During the install you may be asked for your password as part of the Ruby installation process.

Next, set the environment variable PF_PAGE_BUILDER=jekyll. eg.: PF_PAGE_BUILDER=jekyll grunt build

Keeping NPM Dependencies Updated

Anytime you pull a new version of PatternFly, make sure you also run

npm update

so you get the latest version of the dependencies specified in package.json.

Live Reload Server

A local development server can be quickly fired up by using the Gruntjs server task:

npm start


grunt server

This local static asset server (i.e., http://localhost:9000) has the advantage of having livereload integration. Thus, if you start the Gruntjs server, any changes you make to .html or .less files will be automatically reloaded into your browser and the changes reflected almost immediately. This has the obvious benefit of not having to refresh your browser and still be able to see the changes as you add or remove them from your development files. Additionally, any changes made to Jekyll source files (tests/pages/) will trigger a Jekyll build.

Coding Style




In development, styling is written and managed through multiple lesscss files. In order to generate a CSS file of all styling, run the build Gruntjs task:

npm run build


grunt build

This task will compile and minify the lesscss files into CSS files located at dist/css/patternfly.min.css and dist/css/patternfly-additional.min.css.

PatternFlyIcons Font

PatternFlyIcons font is generated using IcoMoon. Go to manage projects and import the project PatternFlyIcons-webfont.json. Load it and update as necessary. When finished, return to manage projects, and download the updated PatternFlyIcons-webfont.json file. Also generate the fonts. Please commit the updated PatternFlyIcons-webfont.json file, the updated font files and supporting LESS/CSS changes. For detailed instructions, please see our PatternFly Icon Guide


The tests/ directory contains HTML pages with component and pattern examples in order to facilitate development. Please consult the official documentation (see below) for full details on how to use PatternFly. The latest PatternFly test directory examples can be seen at

If you are developing on PatternFly and would like to provide a link to a test directory from your fork, TravisCI can be configured to create a copy of your branch with the dist files generated for you. No code changes are necessary to enable this, all that is needed is to login to TravisCI and configure it to point at your PatternFly fork. The first three steps at their Getting Started page provide instructions on how to do this. You will also need to add an AUTH_TOKEN variable to Travis generated in your GitHub account to allow Travis to connect to your fork.

The HTML pages in dist/tests are generated using Jekyll. Do not edit these files directly. See tests/pages to change these files.

Unit Testing

Unit tests are written for [Karma test server] ( with Jasmine

npm test


grunt karma


PatternFly is released through the Bower and npm.

To release a new version version of PatternFly, edit bower.json and package.json accordingly.

Update the version listed in bower.json by editing the file and changing the line:

"version": "<new_version>"

Update the version listed in package.json by editing the file and changing the line:

"version": "<new_version>"

Commit the version bump:

git commit -a -m "Version bump to <new_version>"

Tag and push upstream (assuming you have commit access):

git tag <new_version>
git push && git push --tags

The Bower package manager determines available versions and installs based upon git tags, so the new version will now be automatically available via Bower.

To publish a new version to npm, execute:

npm publish


See and

Browser and Device Support

Since PatternFly is based on Bootstrap, PatternFly supports the same browsers as Bootstrap excluding Internet Explorer 8, plus the latest version of Firefox for Linux.

Important: starting with the v2.0.0 release, PatternFly no longer supports Internet Explorer 8.

Product Backlog


Bug List

Official tracking of bugs occurs in Jira. See


Modifications to Bootstrap are copyright 2013 Red Hat, Inc. and licensed under the Apache License 2.0.

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