This example demonstrates VizHub’s ability to load D3 via UNPKG and use ES6 modules locally. It imports the `select` function from D3 and a custom `message` constant from `./myMessage`, then sets the text of a `#message` div to display “Hello VizHub!”. The page is styled with centered, large text via `styles.css`, while the HTML shell loads a bundled script. It serves as a minimal template for combining external libraries with modular JavaScript in a VizHub environment.