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[F]README.md Edit	2.47 KB	2022-10-08 17:28:22
[F]package.json Edit	2.47 KB	2022-10-08 17:28:22

Editing: README.md

# PostCSS Color Hex Alpha [<img src="https://postcss.github.io/postcss/logo.svg" alt="PostCSS Logo" width="90" height="90" align="right">][postcss]

[<img alt="npm version" src="https://img.shields.io/npm/v/postcss-color-hex-alpha.svg" height="20">][npm-url] [<img alt="CSS Standard Status" src="https://cssdb.org/images/badges/hexadecimal-alpha-notation.svg" height="20">][css-url] [<img alt="Build Status" src="https://github.com/csstools/postcss-plugins/workflows/test/badge.svg" height="20">][cli-url] [<img alt="Discord" src="https://shields.io/badge/Discord-5865F2?logo=discord&logoColor=white">][discord]

[PostCSS Color Hex Alpha] lets you use 4 & 8 character hex color notation in
CSS, following the [CSS Color Module] specification.

```pcss
body {
	background: #9d9c;
}

/* becomes */

body {
	background: rgba(153,221,153,0.8);
}
```

## Usage

Add [PostCSS Color Hex Alpha] to your project:

```bash
npm install postcss postcss-color-hex-alpha --save-dev
```

Use it as a [PostCSS] plugin:

```js
const postcss = require('postcss');
const postcssColorHexAlpha = require('postcss-color-hex-alpha');

postcss([
	postcssColorHexAlpha(/* pluginOptions */)
]).process(YOUR_CSS /*, processOptions */);
```

[PostCSS Color Hex Alpha] runs in all Node environments, with special
instructions for:

| [Node](INSTALL.md#node) | [PostCSS CLI](INSTALL.md#postcss-cli) | [Webpack](INSTALL.md#webpack) | [Create React App](INSTALL.md#create-react-app) | [Gulp](INSTALL.md#gulp) | [Grunt](INSTALL.md#grunt) |
| --- | --- | --- | --- | --- | --- |

## Options

### preserve

The `preserve` option determines whether the original notation
is preserved. By default, it is not preserved.

```js
postcssColorHexAlpha({ preserve: true })
```

```pcss
body {
	background: #9d9c;
}

/* becomes */

body {
	background: rgba(153,221,153,0.8);
	background: #9d9c;
}
```

[cli-url]: https://github.com/csstools/postcss-plugins/actions/workflows/test.yml?query=workflow/test
[css-url]: https://cssdb.org/#hexadecimal-alpha-notation
[discord]: https://discord.gg/bUadyRwkJS
[npm-url]: https://www.npmjs.com/package/postcss-color-hex-alpha

[Gulp PostCSS]: https://github.com/postcss/gulp-postcss
[Grunt PostCSS]: https://github.com/nDmitry/grunt-postcss
[PostCSS]: https://github.com/postcss/postcss
[PostCSS Loader]: https://github.com/postcss/postcss-loader
[PostCSS Color Hex Alpha]: https://github.com/csstools/postcss-plugins/tree/main/plugins/postcss-color-hex-alpha
[CSS Color Module]: https://www.w3.org/TR/css-color-4/#hex-notation

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