@amsterdam/design-system-css
v0.13.1
Published
Stylesheets for all components from the Amsterdam Design System and some general utilities. Use it to apply the visual design of the City of Amsterdam to your HTML elements or non-React components.
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Amsterdam Design System: CSS components
This package provides stylesheets for all components in the Amsterdam Design System and some general utilities. Use it to apply the visual design of the City of Amsterdam to your HTML elements or non-React components.
Introduction
We publish our components’ stylesheets as a separate package to help replicating them in other libraries, platforms, or Saas-applications. The classes are a contract between the component’s definition and its implementations and they facilitate ongoing upgrades.
Our React components use these classes in the HTML they render. You should use that package if your application uses React.
Installation
The stylesheets reference our design tokens. Both packages need to be installed.
npm install @amsterdam/design-system-css @amsterdam/design-system-tokensUsage
The set of classes for a component can be seen as a blueprint for its markup and features.
An .ams-component root selector applies the essential styles of the component to its element, and additional classes like .ams-component--variant modify its appearance or behaviour.
The classes employ the naming convention of NL Design System. Other communities only need to overwrite design tokens to use our components with their branding.
In JavaScript
Import the main stylesheet and use the class names in your markup.
import "@amsterdam/design-system-assets/font/index.css"
import "@amsterdam/design-system-css/dist/index.css"
import "@amsterdam/design-system-tokens/dist/index.css"
export const App = () => (
<p className="ams-paragraph">Hello, world!</p>
)In HTML
Although it is not a typical use case, the stylesheet can be included in an HTML page directly.
<!doctype html>
<html lang="en">
<head>
<link rel="stylesheet" href="node_modules/@amsterdam/design-system-assets/font/index.css" />
<link rel="stylesheet" href="node_modules/@amsterdam/design-system-css/dist/index.css" />
<link rel="stylesheet" href="node_modules/@amsterdam/design-system-tokens/dist/index.css" />
</head>
<body class="ams-body">
<p class="ams-paragraph">Hello, world!</p>
</body>
</html>Compact mode
Load the compact tokens to use the compact appearance of the design system, e.g. for applications. They override the spacious ones; the stylesheets can remain unchanged.
Global styles
Some elements of your document are out of reach for the Design System components. However, their styles can influence the appearance of the components.
Keep the base font size
Do not change the base font-size – e.g. through html { font-size: 62.5% }.
Out typography system expects 1rem to be the browser default of 16 pixels.
If you can’t easily remove such an approach from your application, adopt the Design System components gradually by setting font-size: 100% on elements that use them.
Remove the body margin
If you haven’t removed the margin on the <body> element that browsers set by default, you can add our ams-body class to it to do so.
Use extra bold text
We only use the regular and extra bold weights of our font, Amsterdam Sans.
Apply font-weight: var(--ams-text-font-weight-bold) to elements that display bold text like b, strong, and dt.
Updating
We follow semantic versioning and publish a change log to guide you through updates. The classes are a public API of the design system. Note that detecting changed or deleted classes is still a manual process.
Support
Contact us if you have a question, find an issue, or want to contribute. Find ways to reach us on designsystem.amsterdam.