CORE CSS 
An implementation of Procore's Web Design Guidelines.
Requirements
Node 6+ NPM or Yarn
Background
Our styles are organized according to Inverted Triangle CSS. ITCSS organizes stylesheets by specificity. Read the article linked above for more information.
Developing
To get started, type the following from the root directory:
yarn
yarn dev
Testing
Testing currently consists of Jest snapshot testing on our React components. To run the test suite use the following command:
yarn test
Building
yarn build
Once the project is done building, the docs can be viewed at build/docs/index.html
Contributing and Styleguide
Bug reports and pull requests are welcome on GitHub at https://github.com/procore/core. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.
In lieu of a formal styleguide, we use husky to create a precommit hook, which executes prettier on any git staged files determined by lint-staged.
License
The package is available under the Procore Developers License
About Procore
CORE Icons is maintained by Procore Technologies.
Procore - building the software that builds the world.
Learn more about the #1 most widely used construction management software at procore.com