# PostCSS HTML Syntax
[](https://www.npmjs.com/package/postcss-html)
[](https://www.npmjs.com/package/postcss-html)
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[PostCSS](https://github.com/postcss/postcss) syntax for parsing HTML (and HTML-like)
- [Vue Single-File Components](https://vuejs.org/guide/scaling-up/sfc.html)
- [Svelte Components](https://svelte.dev/docs#component-format)
- [Astro Components](https://docs.astro.build/en/core-concepts/astro-components/)
- [PHP](http://php.net)
- [Quick App](https://doc.quickapp.cn/framework/source-file.html)
- [XSLT](https://www.w3.org/TR/xslt-30/)
## Getting Started
First thing's first, install the module:
```bash
npm install postcss-html --save-dev
```
If you want support SCSS/SASS/LESS/SugarSS syntax, you need to install the corresponding module.
- SCSS: [postcss-scss](https://github.com/postcss/postcss-scss)
- SASS: [postcss-sass](https://github.com/aleshaoleg/postcss-sass)
- LESS: [postcss-less](https://github.com/shellscape/postcss-less)
- SugarSS: [sugarss](https://github.com/postcss/sugarss)
- Stylus: [postcss-styl](https://github.com/ota-meshi/postcss-styl)
## Use Cases
```js
const postcss = require('postcss');
const syntax = require('postcss-html')({
// syntax for parse scss (non-required options)
scss: require('postcss-scss'),
// syntax for parse less (non-required options)
less: require('postcss-less'),
// syntax for parse css blocks (non-required options)
css: require('postcss-safe-parser'),
});
postcss(plugins).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
});
```
If you want support SCSS/SASS/LESS/SugarSS syntax, you need to install these module:
- SCSS: [postcss-scss](https://github.com/postcss/postcss-scss)
- SASS: [postcss-sass](https://github.com/aleshaoleg/postcss-sass)
- LESS: [postcss-less](https://github.com/shellscape/postcss-less)
- SugarSS: [sugarss](https://github.com/postcss/sugarss)
- Stylus: [postcss-styl](https://github.com/ota-meshi/postcss-styl)
## Advanced Use Cases
### Options
```js
const options = {
rules: [
{
// custom language
test: /^postcss$/i,
lang: 'scss'
},
{
// custom language
test: /^customcss$/i,
lang: 'custom'
},
],
// custom parser for CSS (using `postcss-safe-parser`)
css: 'postcss-safe-parser',
// custom parser for SASS (PostCSS-compatible syntax.)
sass: require('postcss-sass'),
// custom parser for SCSS (by module name)
scss: 'postcss-scss',
// custom parser for LESS (by module path)
less: require.resolve('./node_modules/postcss-less'),
// custom parser for SugarSS
sugarss: require('sugarss'),
// custom parser for custom language
custom: require('postcss-custom-syntax'),
}
const syntax = require('postcss-html')(options);
```
## Turning PostCSS off from within your HTML
PostCSS can be temporarily turned off by using special comments in your HTML. For example:
```html
```
```html
```
## Linting with Stylelint
The main use case of this plugin is to apply linting with [Stylelint] to `