This example demonstrates a minimal React application that renders a centered message using a large font size. It uses React 16 and ReactDOM to mount a component into the `#root` element, with styling defined in the HTML file’s `<style>` block. The code relies on the production builds of React and ReactDOM loaded via CDN, and a separate `bundle.js` file for the application logic. The visualization itself is a static text display, showcasing the basic setup for integrating React into a web page.