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README.md

@carbon/styles

Styles for the Carbon Design System

Getting started

To install @carbon/styles in your project, you will need to run the following command using npm:

npm install -S @carbon/styles

If you prefer Yarn, use the following command instead:

yarn add @carbon/styles

This package requires Dart Sass in order to compile. It uses Sass modules to organize the codebase and provide exports to use.

If you're new to Sass, or are wondering how to configure Sass for your project, we recommend checking out the following resources and links:

Once you get Sass up and running in your project, make sure to configure Sass to include node_modules in its includePaths option. For more information, checkout the configuration section in our Sass docs.

Usage

You can bring in all the styles for the Carbon Design System by including @carbon/styles in your Sass files. For example:

@use '@carbon/styles';

If you only would like to bring in specific components from Carbon, you can import them in a similar way:

@use '@carbon/styles/scss/reset';
@use '@carbon/styles/scss/components/accordion';
@use '@carbon/styles/scss/components/button';
@use '@carbon/styles/scss/components/checkbox';

There are various helpers that you can include from Carbon, as well, such as a CSS reset, grid, breakpoint helpers, and more. You can include these similar to how you bring in components:

// Bring in the CSS Reset
@use '@carbon/styles/scss/reset';

// Bring in the CSS Grid
@use '@carbon/styles/scss/grid';

To learn more about the various helpers that @carbon/styles provides, checkout the overview of the files available to use in our Sass docs.

Replacing the typeface

Carbon is designed, tested, and tuned for IBM Plex. We do not recommend replacing the Carbon typeface. If you absolutely need to use a different typeface, you'll need to treat it as a build-time Sass customization that your application owns. There is no support for runtime typeface overrides on prebuilt/CDN Carbon styles.

Warning

Use at your own risk

Overriding the Carbon typeface has broad design and accessibility implications. Carbon type styles are tuned with IBM Plex metrics in mind, including line heights, letter spacing, weight, glyph proportions, ligatures, and fallback behavior. A replacement typeface can change layout, wrapping, density, readability, and interaction states. It can be a significant design and engineering effort to make another typeface work correctly across an application.

To use Carbon with a different typeface, three things are needed:

  1. Turn off Carbon's Plex @font-face generation
  2. Change the root font-family definition(s)
  3. Supply your own @font-face rules

You can accomplish the first two by configuring the Sass entrypoint that your application compiles. This configuration must happen before any other @use of Carbon Sass modules.

@use 'sass:string';

@use '@carbon/styles' with (
  // Turn off Carbon's Plex `@font-face` generation
  $css--font-face: false,

  // Change the root `font-family` definition(s)
  $font-families:
    (
      'sans':
        string.unquote(
          "'Inter Local', system-ui, -apple-system, BlinkMacSystemFont, '.SFNSText-Regular', sans-serif"
        ),
      'mono':
        string.unquote(
          "'IBM Plex Mono', system-ui, -apple-system, BlinkMacSystemFont, '.SFNSText-Regular', monospace"
        ),
      'serif':
        string.unquote(
          "'IBM Plex Serif', system-ui, -apple-system, BlinkMacSystemFont, '.SFNSText-Regular', serif"
        ),
      // Include any other Carbon font family keys your application compiles.
    )
);

$font-families is not merged with Carbon's defaults. If you configure this map, include every family key your compiled styles need, such as sans, mono, serif, or any additional language-specific Plex stacks used by your application.

Then, supply your own @font-face rules to load your replacement font assets.

@font-face {
  font-display: swap;
  font-family: 'Inter Local';
  font-style: normal;
  font-weight: 400;
  src: url('./fonts/inter-latin-400-normal.woff2') format('woff2');
}

@font-face {
  font-display: swap;
  font-family: 'Inter Local';
  font-style: normal;
  font-weight: 600;
  src: url('./fonts/inter-latin-600-normal.woff2') format('woff2');
}

Only load the weights, styles, and Unicode ranges that your application needs, but make sure they cover the font weights and styles your Carbon usage emits. If you use a third-party font service, review its privacy and regional compliance implications carefully, including whether font requests expose user data in ways your application cannot accept.

Theming

You can change the default theme of Carbon by doing the following:

@use '@carbon/styles/scss/themes';
@use '@carbon/styles/scss/theme' with (
  $theme: themes.$g100
);

This example uses a built-in theme from Carbon provided by the scss/themes entrypoint. You can also use a custom theme, or add your own custom tokens to extend the theme.

// Configure with a custom theme
@use '@carbon/styles/scss/theme' with (
  $theme: (
    background: #e2e2e2,
    text-primary: #ffffff,
  )
);
// Extend the g100 theme with your own tokens
@use '@carbon/styles/scss/themes';
@use '@carbon/styles/scss/theme' with (
  $fallback: themes.$g100,
  $theme: (
    custom-token-01: #000000,
  )
);

Design tokens

You can access the design tokens defined by the Carbon Design System through the @carbon/styles/scss/theme entrypoint. This file will allow you to refer to tokens using Sass Variables as well as get the current value for any token in the current theme. For example:

@use '@carbon/styles/scss/theme';

body {
  background: theme.$background;
}

For a full list of tokens available for you to use, check out our theming documentation.

📖 API Documentation

If you're looking for @carbon/styles API documentation, check out:

🙌 Contributing

We're always looking for contributors to help us fix bugs, build new features, or help us improve the project documentation. If you're interested, definitely check out our Contributing Guide! 👀

📝 License

Licensed under the Apache 2.0 License.

IBM Telemetry IBM Telemetry

This package uses IBM Telemetry to collect de-identified and anonymized metrics data. By installing this package as a dependency you are agreeing to telemetry collection. To opt out, see Opting out of IBM Telemetry data collection. For more information on the data being collected, please see the IBM Telemetry documentation.