postcss.config.js

module.exports = {
  plugins: [
    require('postcss-preset-env'),
    require('postcss-import'),
    require('tailwindcss'),
    require('autoprefixer'),
    require('postcss-nested'),
    require('@fullhuman/postcss-purgecss')({
      // Specify the paths to all of the template files in your project
      content: [
        './index.html',
        './src/**/*.vue'
      ],
      // Include any special characters you're using in this regular expression
      defaultExtractor: content => content.match(/[\w-/:]+(?<!:)/g) || [],
    })
  ],
};