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Salesforce Lightning Design System

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Salesforce Lightning Design System

Build Status Dependabot Status

Welcome to the source code repository for Salesforce Lightning Design System, brought to you by Salesforce UX.

SLDS is...

  • Tailored for building Salesforce apps: Using the Lightning Design System markup and CSS framework results in UIs that reflect the Salesforce Lightning look and feel.
  • Continuously updated: As long as you’re using the latest version of the Lightning Design System, your pages are always up to date with Salesforce UI changes.

Getting Started

This project utilizes Storybook for component development. If you would like to know more about Storybook or how it works, check out their website.

Project Installation & Setup:

  1. Clone the repository down locally.
  2. cd
    into the project and run
    npm install
    to install all project dependencies.

Running the Development Environment:

The Storybook development environment can be started by running

npm start

Whenever you add, remove, or alter a component's css annotation metadata, you'll need to restart Storybook to see those changes.

Configuring Node and NVM

Node v12 is recommended for use with the Design System repository, and NVM is the recommended choice for managing multiple versions of Node on your computer.

A .nvmrc file is included in this project to aid in local development. To utilize it for setting your project's node version, run

nvm use
in the root of the directory. Additionally, you can set up a deeper shell integration for automatically invoking the nvmrc file when you change into the project directory by following these instructions.

Developing in Storybook

Once the development server is started with

npm start
, you can load it at http://localhost:9002.


See the annotations guide.


npm start

Starts the Storybook server for local development.

npm run gulp -- lint

Lint the code base for syntax and stylistic errors.

# Lint indentation, Sass, JavaScript files
npm run gulp -- lint

Lint languages independently

npm run gulp -- lint:sass npm run gulp -- lint:javascript npm run gulp -- lint:javascript:test npm run gulp -- lint:spaces npm run gulp -- lint:html

HTML5 validation

npm run gulp -- lint:vnu

HTML5 validation on comma separated blueprint names

npm run gulp -- lint:vnu --components button,path,trees

a11y validation

npm run gulp -- lint:a11y

a11y validation on comma separated blueprint names

npm run gulp -- lint:a11y --components button,path,trees

Lint examples using vnu, aXe, slds validation, and HTML5 validation

npm run gulp -- lint:examples

Pull Request Checks

To run all the checks a pull request will run in Travis use the following command.

# To run every check against all blueprints
npm run pr-checks

To run every check but target certain blueprints for slow checks like aXe and vnu

npm run pr-checks -- --components button,path,trees


npm run build-dist

Generate the Lightning Design System into the


npm run gulp -- styles

Compile Sass to CSS into


npm run gulp -- clean

Delete temporary build and local files.


npm run gulp -- styles:stats
: Useful stats about the project's deliverables.


npm test
: run all tests


See the troubleshooting guide.

Contributing Back to SLDS

See the contributing guide.


Got Feedback?

Please open a new GitHub Issue.

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