css/postcss.config.js

const path = require('path')

module.exports = {
  parser: 'postcss-scss',
  map: {
    sourcesContent: true,
    annotation: true
  },
  plugins: [
    require('postcss-node-sass')({
      includePaths: [path.join(__dirname, 'node_modules')],
      outputStyle: 'compressed'
    }),
    require('autoprefixer')
  ]
}