Install Tailwind CSS with Rspack - Tailwind CSS

Installation
Install Tailwind CSS with Rspack

Create your project
Start by creating a new Rspack project if you don’t have one set up already. The most common approach is to use Rspack CLI.
Terminal
```
npm create rspack@latest
```
Install Tailwind CSS
Install tailwindcss and its peer dependencies, then generate your tailwind.config.js and postcss.config.js files.
Terminal
```
npm install -D tailwindcss postcss postcss-loader autoprefixernpx tailwindcss init -p
```

Enable PostCSS support

In your rspack.config.js file, enable the PostCSS loader. See the documentation for more information.

rspack.config.js

module.exports = {
  // ...
  module: {
    rules: [
      {
        test: /\.css$/,
        use: ["postcss-loader"],
        type: "css",
      },
  // ...

Configure your template paths

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

tailwind.config.js

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

Add the Tailwind directives to your CSS
Add the @tailwind directives for each of Tailwind’s layers to your ./src/index.css file.
index.css
```
@tailwind base;
@tailwind components;
@tailwind utilities;
```
Start your build process
Run your build process with npm run dev.
Terminal
```
npm run dev
```

Start using Tailwind in your project

Start using Tailwind’s utility classes to style your content.

App.jsx

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