This example demonstrates a minimal starter project that combines React v18 and D3 v7, displaying a static text message centered on the screen. The React component renders a simple div element, while the D3 library is loaded via CDN but not yet utilized for any data visualization. The code imports React, ReactDOM, and D3, and uses `ReactDOM.render` to mount the `App` component into the root HTML element. Styling is handled through an external CSS file that sets the message font size and page layout.