This example shows a React application that renders the text “Hello React!” centered on the page using a large font size. It displays a static message within a div styled via inline CSS. The code uses React and ReactDOM, importing both from their production UMD builds, and mounts the component to the root div. The rendering approach relies on React’s `ReactDOM.render` method with a functional component defined in JavaScript. No external data sources or interactive visualizations are present; it serves as a minimal starter template.