This example demonstrates a minimal React application that renders the text “Hello React!” centered on the page. The code defines a simple `App` component that returns a `<div>` with a CSS class for large, centered typography. It initializes the UI through `ReactDOM.render`, targeting the `#root` element in the HTML. The project relies on the React and React-DOM libraries, loaded via Unpkg, and uses a compiled `bundle.js` to execute the JavaScript logic.