@project44-manifest/react-styles NPM

@project44-manifest/react-styles

A CSS-in-JS styling engine powered by Stitches.

Installation

yarn add @project44-manifest/react-styles

Usage

The @project44-manifest/react-styles library ships with a pre-configured styling engine powered by Stitches with support for the Manifest Design System theme.

Styled API

The styled api can be used to create a component.

import { styled } from '@project44-manifest/react-styles';

const Button = styled('button', {
  backgroundColor: '$palette-blue-500',
  borderRadius: '$full',
  color: '$palette-white',
});

<Button>Hello World</Button>;

CSS Prop

All components created using this library will include a css prop, which can be used to pass in style overrides. It’s like the style attribute, but it supports tokens, media queries, nesting and token-aware values.

const Button = styled('button', {});

<Button
  css={{
    backgroundColor: '$palette-blue-500',
    borderRadius: '$full',
    color: '$palette-white',

    '&:hover': {
      backgroundColor: '$palette-blue-700',
    },
  }}
>
  Button
</Button>;

Theme Tokens

Theme tokens are used to style components. These tokens should be used where applicable instead of hard code CSS values as this allows all components to inherit any changes made to the theme.

Check out our theme specification for a complete list of available theme tokens, and the Stitches guide to using tokens.

pxToRem

We encourage using rem instead of px for your unit of measurement to improve accessibility for those with visual impairments. To make the conversion from px to rem easier we have provided a utility function that will convert those values using a base font size of 16px.

import { css, styled } from '@project44-manifest/react-styles';

const MyComponent = styled('div', {
  padding: pxToRem(64),
});

cx

This library also provides a utility for constructing className strings conditionally.

import { cx } from '@project44-manifest/react-styles';

// Strings (variadic)
cx('foo', true && 'bar', 'baz');
//=> 'foo bar baz'

// Objects
cx({ foo: true, bar: false, baz: isTrue() });
//=> 'foo baz'

// Objects (variadic)
cx({ foo: true }, { bar: false }, null, { '--foobar': 'hello' });
//=> 'foo --foobar'

// Arrays
cx(['foo', 0, false, 'bar']);
//=> 'foo bar'

// Arrays (variadic)
cx(['foo'], ['', 0, false, 'bar'], [['baz', [['hello'], 'there']]]);
//=> 'foo bar baz hello there'

// Kitchen sink (with nesting)
cx('foo', [1 && 'bar', { baz: false, bat: null }, ['hello', ['world']]], 'cya');
//=> 'foo bar hello world cya'