Getting Started

Basic steps to integrate the lyne components into your project.

Select your technology to get started.

Plain Javascript

Install the @sbb-esta/lyne-elements and @sbb-esta/lyne-elements-experimental package:

npm install --save @sbb-esta/lyne-elements @sbb-esta/lyne-elements-experimental

or, if using yarn:

yarn add @sbb-esta/lyne-elements @sbb-esta/lyne-elements-experimental

Including global styles is strongly recommended to apply all SBB styles to your application. See styles section if you prefer more granularity on what to import.
```
@import 'node_modules/@sbb-esta/lyne-elements/standard-theme.css';
```

Import the desired element and add it to globalThis:

import { SbbButtonElement } from '@sbb-esta/lyne-elements/button.js';

globalThis.SbbButtonElement = SbbButtonElement;

Angular

ⓘ We will soonish provide a Lyne Angular Wrapper which helps to use lyne components in Angular. However, it's already possible to use Lyne Components in Angular.

Install Angular CLI, see Angular CLI documentation

Install the @sbb-esta/lyne-elements package:

npm install --save @sbb-esta/lyne-elements

or, if using yarn:

yarn add @sbb-esta/lyne-elements

Including global styles is strongly recommended to apply all SBB styles to your application. See styles section if you prefer more granularity on what to import. Importing stylsheets is doable by editing the styles.(s)css:
```
@import 'node_modules/@sbb-esta/lyne-elements/standard-theme.css';
```
or editing your angular.json:
```
  ...
  "styles": [
    "src/styles.scss",
    "node_modules/@sbb-esta/lyne-elements/standard-theme.css"
  ],
  ...
```
In order to use web components with Angular, you have to import CUSTOM_ELEMENT_SCHEMA from the @angular/core package.

Example app

import { CUSTOM_ELEMENTS_SCHEMA, Component } from '@angular/core';
import { bootstrapApplication } from '@angular/platform-browser';

import '@sbb-esta/lyne-elements/button.js';

@Component({
  selector: 'my-app',
  standalone: true,
  schemas: [CUSTOM_ELEMENTS_SCHEMA],
  template: ` <sbb-button>Lorem ipsum</sbb-button> `,
})
export class App {}

bootstrapApplication(App).catch((err) => console.error(err));

React/Next.js

Prepare a React and Next.js setup.

Install the @sbb-esta/lyne-react package:

npm install --save @sbb-esta/lyne-react

or, if using yarn:

yarn add @sbb-esta/lyne-react

Including global styles is strongly recommended to apply all SBB styles to your application. See styles section if you prefer more granularity on what to import.
```
@import '~@sbb-esta/lyne-elements/standard-theme.css';
```

Enhance the transpilePackages array in Next.Js config.

module.exports = {
  ...,
  transpilePackages: [
    '@sbb-esta/lyne-react',
    '@sbb-esta/lyne-elements',
    '@lit/react',
    '@lit/reactive-element',
    'lit',
    'lit-html',
    'lit-element',
  ],
}

(Optional) To activate Server Side Rendering with Declarative Shadow DOM, you have to install the @lit-labs/nextjs package and use the method withLitSSR():

const withLitSSR = require('@lit-labs/nextjs')({
  addDeclarativeShadowDomPolyfill: true,
});

module.exports = withLitSSR({
    ...,
    transpilePackages: [
      '@sbb-esta/lyne-elements',
      '@sbb-esta/lyne-react',
      '@sbb-esta/lyne-design-tokens',
      '@lit-labs/nextjs',
      '@lit-labs/ssr',
      '@lit-labs/ssr-react',
      '@lit/react',
      '@lit/reactive-element',
      'lit',
      'lit-element',
      'lit-html',
    ],
  });

Import and use lyne component:

import { SbbButton } from '@sbb-esta/lyne-react/button';

export default function MyComponent() {
  return <SbbButton onClick={() => {}}></SbbButton>;
}

Whenever e.g. types are needed, they can be imported directly from the @sbb-esta/lyne-elements package:

import type { SbbButtonSize } from '@sbb-esta/lyne-elements/button.js';
import { SbbButton } from '@sbb-esta/lyne-react/button';

export default function MyComponent() {
  const size: SbbButtonSize = 'm';
  return <SbbButton onClick={() => {}} size={size}></SbbButton>;
}

Components

Components documentation is available on digital.sbb.ch and on storybook.

Styles

CSS files

Basically, all our styles are included in 'standard-theme.css' which should be included in your application. However, if you like to more specifically pick what you need, consider the following CSS files available.

File name	Description
`standard-theme.css`	Contains normalizing, core styles and available CSS classes.
`font-characters-extension.css`	Provides full character set of SBB fonts, needs larger files to fetch.

`normalize.css`	Contains general browser resetting styles which can be useful for your application.

`core.css`	Contains mandatory basics to use lyne-components (including design tokens).

`a11y.css`	Provides accessibility related CSS classes.
`animation.css`	Provides CSS classes to disable animation (e.g. for testing).
`layout.css`	Provides layout related CSS classes (e.g. page spacing, grid).
`lists.css`	Provides CSS classes to style lists.
`typography.css`	Provides typography related CSS classes.

Full Font

The standard-theme.css (or core.css) file only contains a subset of the SBB fonts that do not contain all characters (e.g. the French "œ"). For including the full fontset, we provide the font-characters-extension.css file which can be added after the standard-theme.css (or core.css) file.

@import '@sbb-esta/lyne-elements/standard-theme.css';
@import '@sbb-esta/lyne-elements/font-characters-extension.css';

Design Tokens

The @sbb-esta/lyne-elements package provides the CSS variable design tokens from @sbb-esta/lyne-design-tokens in the standard-theme.css (or core.css).

If you have to use design tokens within a javascript context, please also add @sbb-esta/lyne-design-tokens package to your project.

Please check node_modules/@sbb-esta/lyne-elements/standard-theme.css for available design tokens.

How to work with design tokens

Designers are using design tokens in Figma from which developers can get the name to be used. Some design tokens are responsive: they change their value depending on the current breakpoint.

Whenever a design token ends with -{breakpoint}, e.g. --sbb-spacing-responsive-s-zero, There is a corresponding responsive CSS variable without the -breakpoint suffix, e.g. sbb-spacing-responsive-s which should be used.

SASS Mixins

Lyne Components provides various SASS mixins which can be used by consumers. For available SASS mixins, check SASS Mixins.

@use '@sbb-esta/lyne-elements' as sbb;

.my-class {
  @include sbb.grid-base;
}

CSS Classes

As a base rule, styles are included in components. However, there are a few exceptions where we provide CSS classes to consumers:

Layout styles
List styles
Scrollbar styles
Text styles

Manipulating styles of components

In general, the styles of components should not be changed. However, some specific cases may require overriding some styles of a component. For these cases, you can use the CSS variables of a component. Please check a specific component for available CSS variables.

IMPORTANT: CSS variable names which are not documented in the component docs section, can be changed at any time.

Please reach out to the Lyne team if you think a component needs a new variant.

Animations

Generally, animations are part of the design and should not be suppressed. However, e.g. for testing purposes, it makes sense to deactivate them.

Add the sbb-disable-animation CSS class to disable animations and transition effects for the element and all its children.

Sometimes, you might need to disable animations only for a specific element. To achieve that, you can add the sbb-disable-animation-locally class or re-enable animations using the sbb-enable-animation CSS class.

<sbb-component class="sbb-disable-animation-locally">
  <!-- animations will play -->
</sbb-component>

<!-- Or  alternatively-->

<sbb-component class="sbb-disable-animation">
  <sbb-component class="sbb-enable-animation">
    <!-- animations will play -->
  </sbb-component>
</sbb-component>

Units

All our tokens and components use rem as size unit. We strongly recommend using the rem unit to guarantee consistent scaling when font size changes in browsers.

Focus outline

Focus outlines should only be displayed when users are navigating by keyboard. Lyne components use the CSS selector :focus-visible, to achieve that. Whenever you have custom interactive elements, you should use the :focus-visible selector as well and include our SASS mixin focus-outline.

@use '../../core/styles' as sbb;

button:focus-visible {
  @include sbb.focus-outline;
}

Dark background

If a container element has a dark background color, all containing interactive elements should get a white outline. By setting --sbb-focus-outline-color: var(--sbb-focus-outline-color-dark); all descendants elements using the Lyne focus outline mixin (Lyne components included) receive the white outline because the variable gets inherited. Note: If a Lyne component has a negative property, the correct focus outline color gets automatically applied
to all contained interactive elements.

Stacking

As we can't use popover API yet, stacking of overlay context is done manually. However, this can interfere with the z-index of your components. Therefore, every overlay component provides a CSS variable to override its z-index. Additionally, there is the global CSS variable --sbb-overlay-default-z-index that has a default z-index of 1000. With this, developers have the chance to change the z-index either globally or on component level.

Fonts

SBB provides different fonts depending on the font-weight: Roman, Bold and Light. Lyne maps these fonts on the CSS font-weight property so that consumers can just set e.g. font-weight: bold and the correct font gets automatically selected. Please note, although SBB provides more fonts than Roman, Bold and Light, Lyne only intends to use these three fonts. To apply the SBB font family you can use the CSS var var(--sbb-typo-font-family). However, this only includes the family but no letter spacing, so we recommend to always use our SASS mixins or CSS classes which contain all necessary properties. See Text styles for what's available.

<p class="sbb-text-s sbb-text--bold"></p>

@use '@sbb-esta/lyne-elements' as sbb;

p {
  @include sbb.text-s--bold;
}

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GETTING_STARTED.md

GETTING_STARTED.md

Getting Started

Example app

Components

Styles

CSS files

Full Font

Design Tokens

How to work with design tokens

SASS Mixins

CSS Classes

Manipulating styles of components

Animations

Units

Focus outline

Dark background

Stacking

Fonts

Files

GETTING_STARTED.md

Latest commit

History

GETTING_STARTED.md

File metadata and controls

Getting Started

Example app

Components

Styles

CSS files

Full Font

Design Tokens

How to work with design tokens

SASS Mixins

CSS Classes

Manipulating styles of components

Animations

Units

Focus outline

Dark background

Stacking

Fonts