snipette-wripro-site/postcss.config.js

const purgecss = require('@fullhuman/postcss-purgecss')
const cssnano = require('cssnano')

module.exports = {
  plugins: [
    require('postcss-import'),
    require('tailwindcss'),
    process.env.NODE_ENV === 'production' ? require('autoprefixer') : null,
    process.env.NODE_ENV === 'production'
      ? cssnano({
        preset: 'default'
      })
      : null,
    process.env.NODE_ENV === 'production'
      ? purgecss({
        content: ['./src/*.htm'],
        defaultExtractor: content => content.match(/[\w-/:]+(?<!:)/g) || []
      })
      :null,
  ]
}