Aesthetic - CSS-in-JS Style Engine

A low-level, high-performance, atomic-based CSS-in-JS solution. Can be used stand-alone but has been designed to power additional abstractions or APIs.

import { createClientEngine } from '@aesthetic/style';

// Instantiate a client side (DOM) engine
const engine = createClientEngine();

// Render a style decleration into individual atomic class names
const className = engine.renderRule({
	margin: 0,
	textAlign: 'center',
	color: 'var(--color)',
	backgroundColor: 'transparent',
	border: '2px solid #eee',

	':hover': {
		borderColor: '#fff',
	},

	'@media': {
		'(max-width: 600px)': {
			display: 'block',
		},
	},

	'@variants': {
		'size:small': {
			fontSize: 14,
			padding: '4px 10px',
		},
		'size:default': {
			fontSize: 16,
			padding: '6px 12px',
		},
		'size:large': {
			fontSize: 18,
			padding: '8px 14px',
		},
	},
});

className.result; // -> a b c d e f g
className.variants; // -> [h i, j k, l m]

Features

• 5.8kb minified and gzipped (35.4kb original).
• Atomic based CSS. One declaration per class name.
• Variants and compound variants for complex styling.
• Specificity ranking so the intended property is always rendered.
• Font faces, keyframes, imports, and other globals are rendered before normal declarations.
• Media and support queries are grouped and rendered after normal declarations.
• Media queries are sorted mobile-first.
• Injection buffering for increased performance and reduced paints.
• Style declarations support pseudos, attributes, conditional at-rules, and nested declarations.
• Deterministic or atomic incremental CSS class names.
• Right-to-left (RTL) integration (with addon).
• Vendor prefixing for browsers with >= 1% market share (with addon).
• Unit suffixing for numerical values.
• First-class CSS variables support.
• Server-side rendering and client-side hydration.
• Framework and library agnostic. Can be used stand-alone.

Installation

yarn add @aesthetic/style

Documentation

https://aestheticsuite.dev/docs/packages/style