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https://github.com/CraigCav/css-zero
Zero-runtime CSS-in-JS
https://github.com/CraigCav/css-zero
Last synced: about 2 months ago
JSON representation
Zero-runtime CSS-in-JS
- Host: GitHub
- URL: https://github.com/CraigCav/css-zero
- Owner: CraigCav
- License: mit
- Created: 2019-11-18T20:34:15.000Z (almost 5 years ago)
- Default Branch: master
- Last Pushed: 2023-01-05T01:09:42.000Z (over 1 year ago)
- Last Synced: 2024-05-11T09:34:08.898Z (4 months ago)
- Language: JavaScript
- Size: 2.18 MB
- Stars: 285
- Watchers: 5
- Forks: 5
- Open Issues: 47
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
- awesome-list - css-zero - runtime CSS-in-JS | CraigCav | 281 | (JavaScript)
README
# CSS-Zero
## Features
- All of the benefits of writing CSS-in-JS, but with **zero runtime code**
- Write your styles with familiar CSS Syntax
- Generates optimized, atomic CSS with no duplicated style rules
- Style resolution based on order of application, rather than the cascade
- Zero config server-side rendering for applications that support CSS Modules
- Easy composition of styles, with property name collisions eliminated via static analysis
- Theme support via CSS variables, allowing the cost of theming to be proportional to the size of the color palette
- Fast parsing of styles, with CSS downloaded and parsed separately from JS.
- Works without JavaScript, as styles are extracted at build-time.
These benefits are in addition to the more general benefits of using CSS-in-JS:
- Scoped selectors to avoid accidental collision of styles
- Styles co-located with your component reduces context switching
- Refactor with confidence when changing/removing styles
- Detect unused styles with EsLint, just like normal JS variables
- Declarative dynamic styling with React
## Installation
Since CSS-Zero has no runtime, it can be installed purely as a devDependency:
```
npm install css-zero --save-dev
```
## Setup
The simplest way to run CSS-Zero in a React application is using our Babel Macro:
```jsx
import {css, styled} from 'css-zero/macro';
```
For applications created using Create React App (which supports both Babel Macros and CSS Modules out-of-the-box), no further setup or configuration is needed.
For usage with other front-end frameworks, CSS-Zero can be set up with our babel-plugin.
## Syntax
The basic usage of CSS-Zero looks like this:
```jsx
import {css, styles} from 'css-zero';
// Write your styles using the `css` tag
const blue = css`
color: blue;
`;
const base = css`
color: red;
font-size: 16px;
`;
// then use the `styles` helper to compose your styles and generate class names
export default props =>
;
↓ ↓ ↓ ↓ ↓ ↓ Compiles to ↓ ↓ ↓ ↓ ↓ ↓
export default props =>
// along with a the following .zero.css file:
.x1vong5g {color:blue}
.x1dqz7z3 {color:red}
.x1e4w2a9 {font-size:16px}
```
## Demo
[](https://codesandbox.io/s/hello-world-ogzzo?fontsize=14&hidenavigation=1&theme=dark)
## Inspiration
- [emotion](https://emotion.sh/)
- [linaria](https://github.com/callstack/linaria)
- [style-sheet](https://github.com/giuseppeg/style-sheet)
- [Facebook stylex](https://www.youtube.com/watch?v=9JZHodNR184&list=PLPxbbTqCLbGHPxZpw4xj_Wwg8-fdNxJRh&index=3)
- [object-style](https://github.com/jxnblk/object-style)