ÿØÿà JFIF    ÿÛ „  ( %"1!%)+...383,7(-.+  -+++--++++---+-+-----+---------------+---+-++7-----ÿÀ  ß â" ÿÄ     ÿÄ H    !1AQaq"‘¡2B±ÁÑð#R“Ò Tbr‚²á3csƒ’ÂñDS¢³$CÿÄ   ÿÄ %  !1AQa"23‘ÿÚ   ? ôÿ ¨pŸªáÿ —åYõõ\?àÒü©ŠÄï¨pŸªáÿ —åYõõ\?àÓü©ŠÄá 0Ÿªáÿ Ÿå[úƒ ú®ði~TÁbqÐ8OÕpÿ ƒOò¤Oè`–RÂáœá™êi€ßÉ< FtŸI“öÌ8úDf´°å}“¾œ6  öFá°y¥jñÇh†ˆ¢ã/ÃÐ:ªcÈ "Y¡ðÑl>ÿ ”ÏËte:qž\oäŠe÷󲍷˜HT4&ÿ ÓÐü6ö®¿øþßèô Ÿ•7Ñi’•j|“ñì>b…þS?*Óôÿ ÓÐü*h¥£ír¶ü UãSç‚Ÿ[AÐaè[ûª•õ&õj?†Éö+EzP—WeÒírJFt ‘BŒ†Ï‡%#tE Øz ¥OÛ«!1›üä±Í™%ºÍãö]°î(–:@<‹ŒÊö×òÆt¦ãº+‡¦%ÌÁ²h´OƒJŒtMÜ>ÀÜÊw3Y´•牋4ǍýʏTì>œú=Íwhyë,¾Ôò×õ¿ßÊa»«þˆѪQ|%6ž™A õ%:øj<>É—ÿ Å_ˆCbõ¥š±ý¯Ýƒï…¶|RëócÍf溪“t.СøTÿ *Ä¿-{†çàczůŽ_–^XþŒ±miB[X±d 1,é”zEù»& î9gœf™9Ð'.;—™i}!ôšåîqêÛ٤ёý£½ÆA–àôe"A$˝Úsäÿ ÷Û #°xŸëí(l »ý3—¥5m! rt`†0~'j2(]S¦¦kv,ÚÇ l¦øJA£Šƒ J3E8ÙiŽ:cÉžúeZ°€¯\®kÖ(79«Ž:¯X”¾³Š&¡* ….‰Ž(ÜíŸ2¥ª‡×Hi²TF¤ò[¨íÈRëÉ䢍mgÑ.Ÿ<öäS0í„ǹÁU´f#Vß;Õ–…P@3ío<ä-±»Ž.L|kªÀê›fÂ6@»eu‚|ÓaÞÆŸ…¨ááå>åŠ?cKü6ùTÍÆ”†sĤÚ;H2RÚ†õ\Ö·Ÿn'¾ ñ#ºI¤Å´%çÁ­‚â7›‹qT3Iï¨ÖÚ5I7Ë!ÅOóŸ¶øÝñØôת¦$Tcö‘[«Ö³šÒ';Aþ ¸èíg A2Z"i¸vdÄ÷.iõ®§)¿]¤À†–‡É&ä{V¶iŽ”.Ó×Õÿ û?h¬Mt–íª[ÿ Ñÿ ÌV(í}=ibÔ¡›¥¢±b Lô¥‡piη_Z<‡z§èŒ)iÖwiÇ 2hÙ3·=’d÷8éŽ1¦¸c¤µ€7›7Ø ð\á)} ¹fËí›pAÃL%âc2 í§æQz¿;T8sæ°qø)QFMð‰XŒÂ±N¢aF¨…8¯!U  Z©RÊ ÖPVÄÀÍin™Ì-GˆªÅËŠ›•zË}º±ŽÍFò¹}Uw×#ä5B¤{î}Ð<ÙD é©¤&‡ïDbàÁôMÁ." ¤‡ú*õ'VŽ|¼´Úgllº¼klz[Æüï÷Aób‡Eÿ dÑ»Xx9ÃÜ£ÁT/`¼¸vI±Ýµ·Ë‚“G³þ*Ÿû´r|*}<¨îºœ @¦mÄ’M¹”.œ«Y–|6ÏU¤jç¥ÕÞqO ˜kDÆÁ¨5ÿ š;Њ¦¦€GÙk \ –Þ=â¼=SͧµªS°ÚÍpÜãQűÀõ¬?ÃÁ1Ñ•õZà?hóœ€ L¦l{Y*K˜Ù›zc˜–ˆâ ø+¾ ­-Ök¥%ùEÜA'}ˆ><ÊIè“bpÍ/qÞâvoX€w,\úªò6Z[XdÒæ­@Ö—€$òJí#é>'°Ú ôª˜<)4ryÙ£|óAÅn5žêŸyÒäMÝ2{"}‰–¤l÷ûWX\l¾Á¸góÉOÔ /óñB¤f¸çñ[.P˜ZsÊË*ßT܈§QN¢’¡¨§V¼(Üù*eÕ“”5T¨‹Âê¥FŒã½Dü[8'Ò¥a…Ú¶k7a *•›¼'Ò·\8¨ª\@\õ¢¦íq+DÙrmÎ…_ªæ»ŠÓœ¡¯’Ré9MÅ×D™lælffc+ŒÑ,ý™ÿ ¯þǤ=Å’Á7µ÷ÚÛ/“Ü€ñýã¼àí¾ÕÑ+ƒ,uµMâÀÄbm:ÒÎPæ{˜Gz[ƒ¯«® KHà`ßØŠéí¯P8Aq.C‰ à€kòpj´kN¶qô€…Õ,ÜNŠª-­{Zö’æû44‰sŽè‰îVíRœÕm" 6?³D9¡ÇTíÅꋇ`4«¸ÝÁô ï’ýorqКÇZ«x4Žâéþuïf¹µö[P ,Q£éaX±`PÉÍZ ¸äYúg üAx ’6Lê‚xÝÓ*äQ  Ï’¨hÍ =²,6ï#rÃ<¯–£»ƒ‹,–ê•€ aÛsñ'%Æ"®ÛüìBᝠHÚ3ß°©$“XnœÖ’î2ËTeûìxîß ¦å¿çÉ ðK§þ{‘t‚Ϋ¬jéîZ[ ”š7L¥4VÚCE×]m¤Øy”ä4-dz£œ§¸x.*ãÊÊ b÷•h:©‡¦s`BTÁRû¾g⻩‹jø sF¢àJøFl‘È•Xᓁà~*j¯ +(ÚÕ6-£¯÷GŠØy‚<Ç’.F‹Hœw(+)ÜÜâÈzÄäT§FߘãÏ;DmVœ3Àu@mÚüXÝü•3B¨òÌÁÛ<·ÃÜ z,Ì@õÅ·d2]ü8s÷IôÞ¯^Ç9¢u„~ëAŸï4«M? 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PostCSS Logo

PostCSS Loader

Loader for webpack to process CSS with PostCSS

Install

```bash npm i -D postcss-loader ```

Usage

### `Configuration` **`postcss.config.js`** ```js module.exports = { parser: 'sugarss', plugins: { 'postcss-import': {}, 'postcss-preset-env': {}, 'cssnano': {} } } ``` You can read more about common PostCSS Config [here](https://github.com/michael-ciniawsky/postcss-load-config). ### `Config Cascade` You can use different `postcss.config.js` files in different directories. Config lookup starts from `path.dirname(file)` and walks the file tree upwards until a config file is found. ``` |– components | |– component | | |– index.js | | |– index.png | | |– style.css (1) | | |– postcss.config.js (1) | |– component | | |– index.js | | |– image.png | | |– style.css (2) | |– postcss.config.js (1 && 2 (recommended)) |– webpack.config.js | |– package.json ``` After setting up your `postcss.config.js`, add `postcss-loader` to your `webpack.config.js`. You can use it standalone or in conjunction with `css-loader` (recommended). Use it **after** `css-loader` and `style-loader`, but **before** other preprocessor loaders like e.g `sass|less|stylus-loader`, if you use any. **`webpack.config.js`** ```js module.exports = { module: { rules: [ { test: /\.css$/, use: [ 'style-loader', 'postcss-loader' ] } ] } } ``` > ⚠️ When `postcss-loader` is used standalone (without `css-loader`) don't use `@import` in your CSS, since this can lead to quite bloated bundles **`webpack.config.js` (recommended)** ```js module.exports = { module: { rules: [ { test: /\.css$/, use: [ 'style-loader', { loader: 'css-loader', options: { importLoaders: 1 } }, 'postcss-loader' ] } ] } } ```

Options

|Name|Type|Default|Description| |:--:|:--:|:-----:|:----------| |[`exec`](#exec)|`{Boolean}`|`undefined`|Enable PostCSS Parser support in `CSS-in-JS`| |[`parser`](#syntaxes)|`{String\|Object}`|`undefined`|Set PostCSS Parser| |[`syntax`](#syntaxes)|`{String\|Object}`|`undefined`|Set PostCSS Syntax| |[`stringifier`](#syntaxes)|`{String\|Object}`|`undefined`|Set PostCSS Stringifier| |[`config`](#config)|`{Object}`|`undefined`|Set `postcss.config.js` config path && `ctx`| |[`plugins`](#plugins)|`{Array\|Function}`|`[]`|Set PostCSS Plugins| |[`sourceMap`](#sourcemap)|`{String\|Boolean}`|`false`|Enable Source Maps| ### `Exec` If you use JS styles without the [`postcss-js`][postcss-js] parser, add the `exec` option. **`webpack.config.js`** ```js { test: /\.style.js$/, use: [ 'style-loader', { loader: 'css-loader', options: { importLoaders: 1 } }, { loader: 'postcss-loader', options: { parser: 'sugarss', exec: true } } ] } ``` ### `Config` |Name|Type|Default|Description| |:--:|:--:|:-----:|:----------| |[`path`](#path)|`{String}`|`undefined`|PostCSS Config Directory| |[`context`](#context)|`{Object}`|`undefined`|PostCSS Config Context| #### `Path` You can manually specify the path to search for your config (`postcss.config.js`) with the `config.path` option. This is needed if you store your config in a separate e.g `./config || ./.config` folder. > ⚠️ Otherwise it is **unnecessary** to set this option and is **not** recommended > ⚠️ Note that you **can't** use a **filename** other than the [supported config formats] (e.g `.postcssrc.js`, `postcss.config.js`), this option only allows you to manually specify the **directory** where config lookup should **start** from **`webpack.config.js`** ```js { loader: 'postcss-loader', options: { config: { path: 'path/to/.config/' ✅ path: 'path/to/.config/css.config.js' ❌ } } } ``` [supported config formats]: https://github.com/michael-ciniawsky/postcss-load-config#usage #### `Context (ctx)` |Name|Type|Default|Description| |:--:|:--:|:-----:|:----------| |`env`|`{String}`|`'development'`|`process.env.NODE_ENV`| |`file`|`{Object}`|`loader.resourcePath`|`extname`, `dirname`, `basename`| |`options`|`{Object}`|`{}`|Options| `postcss-loader` exposes context `ctx` to the config file, making your `postcss.config.js` dynamic, so can use it to do some real magic ✨ **`postcss.config.js`** ```js module.exports = ({ file, options, env }) => ({ parser: file.extname === '.sss' ? 'sugarss' : false, plugins: { 'postcss-import': { root: file.dirname }, 'postcss-preset-env': options['postcss-preset-env'] ? options['postcss-preset-env'] : false, 'cssnano': env === 'production' ? options.cssnano : false } }) ``` **`webpack.config.js`** ```js { loader: 'postcss-loader', options: { config: { ctx: { 'postcss-preset-env': {...options}, cssnano: {...options}, } } } } ``` ### `Plugins` **`webpack.config.js`** ```js { loader: 'postcss-loader', options: { ident: 'postcss', plugins: (loader) => [ require('postcss-import')({ root: loader.resourcePath }), require('postcss-preset-env')(), require('cssnano')() ] } } ``` > ⚠️ webpack requires an identifier (`ident`) in `options` when `{Function}/require` is used (Complex Options). The `ident` can be freely named as long as it is unique. It's recommended to name it (`ident: 'postcss'`) ### `Syntaxes` |Name|Type|Default|Description| |:--:|:--:|:-----:|:----------| |[`parser`](#parser)|`{String\|Function}`|`undefined`|Custom PostCSS Parser| |[`syntax`](#syntax)|`{String\|Function}`|`undefined`|Custom PostCSS Syntax| |[`stringifier`](#stringifier)|`{String\|Function}`|`undefined`|Custom PostCSS Stringifier| #### `Parser` **`webpack.config.js`** ```js { test: /\.sss$/, use: [ ..., { loader: 'postcss-loader', options: { parser: 'sugarss' } } ] } ``` #### `Syntax` **`webpack.config.js`** ```js { test: /\.css$/, use: [ ..., { loader: 'postcss-loader', options: { syntax: 'sugarss' } } ] } ``` #### `Stringifier` **`webpack.config.js`** ```js { test: /\.css$/, use: [ ..., { loader: 'postcss-loader', options: { stringifier: 'midas' } } ] } ``` ### `SourceMap` Enables source map support, `postcss-loader` will use the previous source map given by other loaders and update it accordingly, if no previous loader is applied before `postcss-loader`, the loader will generate a source map for you. **`webpack.config.js`** ```js { test: /\.css/, use: [ { loader: 'style-loader', options: { sourceMap: true } }, { loader: 'css-loader', options: { sourceMap: true } }, { loader: 'postcss-loader', options: { sourceMap: true } }, { loader: 'sass-loader', options: { sourceMap: true } } ] } ``` #### `'inline'` You can set the `sourceMap: 'inline'` option to inline the source map within the CSS directly as an annotation comment. **`webpack.config.js`** ```js { loader: 'postcss-loader', options: { sourceMap: 'inline' } } ``` ```css .class { color: red; } /*# sourceMappingURL=data:application/json;base64, ... */ ```

Examples

### `Stylelint` **`webpack.config.js`** ```js { test: /\.css$/, use: [ 'style-loader', 'css-loader', { loader: 'postcss-loader', options: { ident: 'postcss', plugins: [ require('postcss-import')(), require('stylelint')(), ..., ] } } ] } ``` ### `Autoprefixing` **`webpack.config.js`** ```js { test: /\.css$/, use: [ 'style-loader', 'css-loader', { loader: 'postcss-loader', options: { ident: 'postcss', plugins: [ require('autoprefixer')({...options}), ..., ] } } ] } ``` > :warning: [`postcss-preset-env`](https://github.com/csstools/postcss-preset-env) includes [`autoprefixer`](https://github.com/postcss/autoprefixer), so adding it separately is not necessary if you already use the preset. ### `CSS Modules` This loader [cannot be used] with [CSS Modules] out of the box due to the way `css-loader` processes file imports. To make them work properly, either add the css-loader’s [`importLoaders`] option. **`webpack.config.js`** ```js { test: /\.css$/, use: [ 'style-loader', { loader: 'css-loader', options: { modules: true, importLoaders: 1 } }, 'postcss-loader' ] } ``` or use [postcss-modules] instead of `css-loader`. [`importLoaders`]: https://github.com/webpack-contrib/css-loader#importloaders [cannot be used]: https://github.com/webpack/css-loader/issues/137 [CSS Modules]: https://github.com/webpack/css-loader#css-modules [postcss-modules]: https://github.com/css-modules/postcss-modules ### `CSS-in-JS` If you want to process styles written in JavaScript, use the [postcss-js] parser. [postcss-js]: https://github.com/postcss/postcss-js **`webpack.config.js`** ```js { test: /\.style.js$/, use: [ 'style-loader', { loader: 'css-loader', options: { importLoaders: 2 } }, { loader: 'postcss-loader', options: { parser: 'postcss-js' } }, 'babel-loader' ] } ``` As result you will be able to write styles in the following way ```js import colors from './styles/colors' export default { '.menu': { color: colors.main, height: 25, '&_link': { color: 'white' } } } ``` > :warning: If you are using Babel you need to do the following in order for the setup to work > 1. Add [babel-plugin-add-module-exports] to your configuration > 2. You need to have only one **default** export per style module [babel-plugin-add-module-exports]: https://github.com/59naga/babel-plugin-add-module-exports ### [Extract CSS][ExtractPlugin] [ExtractPlugin]: https://github.com/webpack-contrib/mini-css-extract-plugin **`webpack.config.js`** ```js const devMode = process.env.NODE_ENV !== 'production' const MiniCssExtractPlugin = require('mini-css-extract-plugin') module.exports = { module: { rules: [ { test: /\.css$/, use: [ devMode ? 'style-loader' : MiniCssExtractPlugin.loader, 'css-loader', 'postcss-loader' ] } ] }, plugins: [ new MiniCssExtractPlugin({ filename: devMode ? '[name].css' : '[name].[hash].css' }) ] } ```

Maintainers


Michael Ciniawsky
Alexander Krasnoyarov
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