From Github

npm install

---

Manual Process

Create package.json file

npm init -y

Install NPM packages

npm install -D tailwindcss postcss autoprefixer vite

Add Dev Script to package.json

...
"scripts": {
    "dev": "vite"
}
...

Configure Tailwind and PostCSS

Accept the command prompt

npx tailwindcss init -p

Run Vite Server

npm run dev

Option: Build Once Using Input and Output Parameters

npx tailwindcss -i css/tailwind.css -o build/tailwind.css