I encountered an issue while integrating Tailwind CSS into my Vite project using React and TypeScript.

Despite meticulously following the installation steps and configuring the tailwind.config.js file, Tailwind CSS seemed oddly inert within my React components.

After a thorough investigation, I pinpointed the solution:
a tweak to the ‘vite.config.ts’ file.
By making the adjustments below, I was able to seamlessly integrate Tailwind CSS into my project:

import { defineConfig } from 'vite'
import react from '@vitejs/plugin-react'
import tailwindcss from 'tailwindcss';
import autoprefixer from 'autoprefixer';

// https://vitejs.dev/config/
export default defineConfig({
  plugins: [react()],
  css: {
    postcss: {
      plugins: [tailwindcss, autoprefixer],
    },
  },
})

This configuration snippet, added to ‘vite.config.ts’, proved to be the missing piece. With Tailwind CSS now fully operational, my React components came to life with dynamic styling.