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