This example displays a single, large "Hello VizHub!" message in the center of a dark page, styled with white Ubuntu font. It demonstrates the basic workflow of a D3.js v5 project using embedded HTML and CSS, along with modular JavaScript. The code imports the `select` function from D3 to target the `#message` div and sets its text content from a separate ES6 module, `myMessage.js`, which exports the greeting string. The page loads D3 from a CDN and uses a Google Fonts import for typography.