Let's start with how to create the project with Next.js using Tailwindcss within a few easy steps.

And also how to add Tailwindcss to the Next.js project

1 . Creating the Next.js project.

The first thing we need to open the terminal, in the respective folder where we want to create the Next.js project. ↓

➜ npx create-next-app@latest my-project --typescript --eslint
➜ cd my-project

2 . Install Tailwindcss

Check and make sure you are in the my-project folder. Now, Install the tailwindcss to the project.

Install the tailwindcss dependencies via npm command as follows

Then run the init command to generate both tailwind.config.js and postcss.config.js.

➜ npm install -D tailwindcss postcss autoprefixer
➜ npx tailwindcss init -p

3 . Arrange your template paths

Open the tailwind.config.js and make changes

Add the paths to all of your template files in your tailwind.config.js file.

/** @type {import('tailwindcss').Config} */
module.exports = {
  content: [
    "./app/**/*.{js,ts,jsx,tsx}",
    "./pages/**/*.{js,ts,jsx,tsx}",
    "./components/**/*.{js,ts,jsx,tsx}",

    // Or if using `src` directory:
    "./src/**/*.{js,ts,jsx,tsx}",
  ],
  theme: {
    extend: {},
  },
  plugins: [],
}

4. Add the Tailwind directives to your CSS

Open the globals.css file and add the directives for applying styles.

Add the @tailwind directives for each Tailwind’s layers to your globals.css file.

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

5. Start your build process

Now, start the project, Run your build process with npm run dev.

npm run dev

6 . Add Tailwind styles to the project

Open index.tsx file and start using the styles

export default function Home() {
  return (
    <h1 className="text-3xl font-bold underline">
      Hello world!
    </h1>
  )
}

Done! Created the Next.js & tailwindcss project🥳. Thank you.