Add rsbuild-react-tailwindcss-v4 example

rsbuild/react-tailwindcss-v4/.gitignore

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+# Local
+.DS_Store
+*.local
+*.log*
+
+# Dist
+node_modules
+dist/
+
+# IDE
+.vscode/*
+!.vscode/extensions.json
+.idea

rsbuild/react-tailwindcss-v4/README.md

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+# Rsbuild Project
+
+## Setup
+
+Install the dependencies:
+
+```bash
+pnpm install
+```
+
+## Get Started
+
+Start the dev server:
+
+```bash
+pnpm dev
+```
+
+Build the app for production:
+
+```bash
+pnpm build
+```
+
+Preview the production build locally:
+
+```bash
+pnpm preview
+```

rsbuild/react-tailwindcss-v4/package.json

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+{
+  "name": "rsbuild-react-tailwindcss-v4",
+  "private": true,
+  "version": "1.0.0",
+  "scripts": {
+    "dev": "rsbuild dev --open",
+    "build": "rsbuild build",
+    "preview": "rsbuild preview"
+  },
+  "dependencies": {
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0",
+    "tailwindcss": "4.0.0-alpha.9"
+  },
+  "devDependencies": {
+    "@rsbuild/core": "^0.5.1",
+    "@rsbuild/plugin-react": "^0.5.1",
+    "@tailwindcss/postcss": "4.0.0-alpha.9",
+    "@types/react": "^18.2.47",
+    "@types/react-dom": "^18.2.18",
+    "typescript": "^5.3.0"
+  }
+}

rsbuild/react-tailwindcss-v4/postcss.config.ts

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+export default {
+  plugins: {
+    "@tailwindcss/postcss": {},
+  },
+};

rsbuild/react-tailwindcss-v4/rsbuild.config.ts

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+import { defineConfig } from '@rsbuild/core';
+import { pluginReact } from '@rsbuild/plugin-react';
+
+export default defineConfig({
+  plugins: [pluginReact()],
+});

rsbuild/react-tailwindcss-v4/src/App.css

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+@import "tailwindcss";
+
+body {
+  margin: 0;
+  color: #fff;
+  font-family: Inter, Avenir, Helvetica, Arial, sans-serif;
+  background-image: linear-gradient(to bottom, #020917, #101725);
+}

rsbuild/react-tailwindcss-v4/src/App.tsx

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+import "./App.css";
+
+const App = () => {
+  return (
+    <div className="flex flex-col justify-center items-center min-h-screen text-center">
+      <h1 className="text-6xl font-bold leading-normal">Rsbuild with React</h1>
+      <p className="text-lg font-normal text-gray-500 leading-normal">
+        Start building amazing things with Rsbuild.
+      </p>
+    </div>
+  );
+};
+
+export default App;

rsbuild/react-tailwindcss-v4/src/env.d.ts

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+/// <reference types="@rsbuild/core/types" />

rsbuild/react-tailwindcss-v4/src/index.tsx

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+import React from 'react';
+import ReactDOM from 'react-dom/client';
+import App from './App';
+
+const root = ReactDOM.createRoot(document.getElementById('root')!);
+root.render(
+  <React.StrictMode>
+    <App />
+  </React.StrictMode>,
+);

rsbuild/react-tailwindcss-v4/tsconfig.json

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+{
+  "compilerOptions": {
+    "target": "ES2020",
+    "lib": ["DOM", "ES2020"],
+    "module": "ESNext",
+    "jsx": "react-jsx",
+    "strict": true,
+    "skipLibCheck": true,
+    "isolatedModules": true,
+    "resolveJsonModule": true,
+    "moduleResolution": "bundler"
+  },
+  "include": ["src"]
+}