tailwindcss

Ponto 1
Criar projeto laravel

composer create-project laravel/laravel:^8.0 example-app
php artisan serve

Ponto 2 
Instalar tailwind css

npm install -D tailwindcss postcss autoprefixer
npx tailwindcss init

Ponto 3
Adicionar tailwindcss no webpack.mix.js

mix.js("resources/js/app.js", "public/js")
  .postCss("resources/css/app.css", "public/css", [
    require("tailwindcss"),
  ]);

Ponto 4
Adicionar template no tailwind.config.js

module.exports = {
  content: [
    "./resources/**/*.blade.php",
    "./resources/**/*.js",
    "./resources/**/*.vue",
  ],
  theme: {
    extend: {},
  },
  plugins: [],
}

Ponto 5
Adicionar no ./resources/css/app.css

@tailwind base;
@tailwind components;
@tailwind utilities;

Ponto 6

npm run watch

Atenção

Antes de rodar npm run watch, é preciso fazer os seguintes passos
composer update
rm -rf node_modules

php artisan route:clear