This React Starter example demonstrates a minimal web application that renders the text “Hello React!” centered on the page. The interface displays the message using a large, styled CSS class. The application is built with React and ReactDOM, using the `ReactDOM.render` function to inject the `App` component into the `#root` element of the HTML structure. It loads React and ReactDOM from the unpkg content delivery network and relies on a separate `bundle.js` file for the compiled JavaScript.