postcss.config.cjs

const tailwindcss = require('tailwindcss');
const autoprefixer = require('autoprefixer');
const cssnano = require('cssnano');

const mode = process.env.NODE_ENV;
const dev = mode === 'development';

module.exports = {
	plugins: [
		// Some plugins, like postcss-nested, need to run before Tailwind
		tailwindcss,
		// But others, like autoprefixer, need to run after
		autoprefixer,
		// Then purge CSS files to minimise CSS
		!dev &&
			cssnano({
				preset: 'default'
			})
	]
};