An extensible CSS loader for JSPM.

Install the plugin and name it css locally

jspm install css=npm:jspm-loader-css

Load the styles by referencing them in your JS:

import from './styles.css!'

The default CSS loader supports opt-in CSS Modules syntax. So, importing the following CSS file:

:local(.myComponent) {}

generates and loads the following CSS

._path_to_file__myComponent {}

and returns the mapping to JS for you to use in templates:

import styles from './styles.css!'
elem.innerHTML = `<div class="${styles.myComponent}"></div>`

For the full CSS Modules syntax, where everything is local by default, see the JSPM CSS Modules Loader project.

The loader also supports the CSS Modules Interchange Format.

You can customize this loader to meet your needs.

1. Create a css.js file under your project folder next to config.js file.

2. In the css.js file, include whatever postcss plugins you need:

   import { CSSLoader, Plugins } from 'jspm-loader-css'
   import vars from 'postcss-simple-vars' // you want to use this postcss plugin
   
   export default new CSSLoader([
   	vars,
   	Plugins.autoprefixer()
   ], __moduleName)
   

   Just make sure you have Plugins.autoprefixer passed to new CSSLoader, it's required.

3. Since you have had jspm-loader-css installed with jspm install css=npm:jspm-loader-css, now open config.js and replace line

   "css": "npm:[email protected]"
   

   with:

   "jspm-loader-css": "npm:[email protected]"
   

   jspm will use what css.js exports as the default css loader.

You can also check an example css.js file here.