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# PostCSS CSS-in-JS Syntax
[](https://www.npmjs.org/package/@stylelint/postcss-css-in-js) [](https://github.com/stylelint/postcss-css-in-js/actions)
<img align="right" width="95" height="95"
title="Philosopher’s stone, logo of PostCSS"
src="https://api.postcss.org/logo.svg">
[PostCSS](https://github.com/postcss/postcss) syntax for parsing [CSS in JS](https://github.com/MicheleBertoli/css-in-js) literals:
- [aphrodite](https://github.com/Khan/aphrodite)
- [astroturf](https://github.com/4Catalyzer/astroturf)
- [csjs](https://github.com/rtsao/csjs)
- [css-light](https://github.com/streamich/css-light)
- [cssobj](https://github.com/cssobj/cssobj)
- [electron-css](https://github.com/azukaar/electron-css)
- [emotion](https://github.com/emotion-js/emotion)
- [freestyler](https://github.com/streamich/freestyler)
- [glamor](https://github.com/threepointone/glamor)
- [glamorous](https://github.com/paypal/glamorous)
- [j2c](https://github.com/j2css/j2c)
- [linaria](https://github.com/callstack/linaria)
- [lit-css](https://github.com/bashmish/lit-css)
- [react-native](https://github.com/necolas/react-native-web)
- [react-style](https://github.com/js-next/react-style)
- [reactcss](https://github.com/casesandberg/reactcss)
- [styled-components](https://github.com/styled-components/styled-components)
- [styletron-react](https://github.com/rtsao/styletron)
- [styling](https://github.com/andreypopp/styling)
- [typestyle](https://github.com/typestyle/typestyle)
## Getting Started
First thing's first, install the module:
```
npm install postcss-syntax @stylelint/postcss-css-in-js --save-dev
```
## Use Cases
```js
const postcss = require("postcss");
const stylelint = require("stylelint");
const syntax = require("postcss-syntax");
postcss([stylelint({ fix: true })])
.process(source, { syntax: syntax })
.then(function (result) {
// An alias for the result.css property. Use it with syntaxes that generate non-CSS output.
result.content;
});
```
input:
```javascript
import glm from "glamorous";
const Component1 = glm.a({
flexDirectionn: "row",
display: "inline-block",
color: "#fff"
});
```
output:
```javascript
import glm from "glamorous";
const Component1 = glm.a({
color: "#fff",
display: "inline-block",
flexDirectionn: "row"
});
```
## Advanced Use Cases
Add support for more `css-in-js` package:
```js
const syntax = require("postcss-syntax")({
"i-css": (index, namespace) => namespace[index + 1] === "addStyles",
"styled-components": true
});
```
See: [postcss-syntax](https://github.com/gucong3000/postcss-syntax)
## Style Transformations
The main use case of this plugin is to apply PostCSS transformations to CSS code in template literals & styles as object literals.