В проекте используется cssmodules
{
test: /\.css$/,
use: [
require.resolve('style-loader'), {
loader: require.resolve('css-loader'),
options: {
importLoaders: 1,
modules: true,
localIdentName: "[name]__[local]___[hash:base64:5]"
}
}, {
loader: require.resolve('postcss-loader'),
options: {
// Necessary for external CSS imports to work
// https://github.com/facebookincubator/create-react-app/issues/2677
ident: 'postcss',
plugins: () => [
require('postcss-flexbugs-fixes'),
autoprefixer({
browsers: [
'>1%', 'last 4 versions', 'Firefox ESR', 'not ie < 9', // React doesn't support IE8 anyway
],
flexbox: 'no-2009'
}),
require('postcss-modules-values')
]
}
}
]
},
Как прикрутить stylus ?