This example displays a single, large “Hello VizHub!” message centered on a dark blue page. It demonstrates how to set up a minimal D3.js visualization using the `select` function to update the text content of a div element, with styling handled by an Ubuntu font and CSS. The message text is imported from a local ES6 module, `myMessage.js`, while the page loads D3 v5 from a CDN and structures the app with separate `index.html`, `index.js`, and `styles.css` files.