vite + react install cmd ::

 npm create vite@latest my-project -- --template react
cd my-project

tailwindcss:: version v3.4.17

1)npm install -D tailwindcss@3 postcss autoprefixer
2)npx tailwindcss init -p

use in tailwind.config.js

/** @type {import('tailwindcss').Config} */
export default {
  content: [
    "./index.html",
    "./src/**/*.{js,ts,jsx,tsx}",
  ],
  theme: {
    extend: {},
  },
  plugins: [],
}

index.css

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

npm run dev

..