This example displays the text “Hello VizHub!” in a large, centered layout using D3’s `select` method to target a div with the ID `message`. It demonstrates loading D3 v5 from a CDN via UNPKG and importing a local ES6 module, `myMessage.js`, which exports the displayed string. The code shows a minimal setup with a `styles.css` file controlling font size and alignment, illustrating how to combine external libraries, local modules, and styling in a single visualization template.