Using tailwind css with buefy/bulma classes

postcss.config.js

const path = require("path");

const purgecss = require("@fullhuman/postcss-purgecss")({
  // Specify the paths to all of the template files in your project
  content: [
    "./src/**/*.html",
    "./src/**/*.vue",
    path.join(__dirname, "./node_modules/buefy/**/*.@(vue|js)")
    // etc.
  ],
  whitelistPatterns: [/^navbar-/, /^has-text-/, /^fa-/, /^has-numberinput-/],
  // Include any special characters you're using in this regular expression
  defaultExtractor: content => content.match(/[\w-/:]+(?<!:)/g) || []
});

module.exports = {
  plugins: [
    require("tailwindcss"),
    require("autoprefixer"),
    ...(process.env.NODE_ENV === "production" ? [purgecss] : [])
  ]
};

Could you provide an update on how to use tailwindcss for buefy?