This example demonstrates how a VizHub project loads D3 from a CDN and uses ES6 modules to organize code. It imports the `select` function from D3 and a custom `message` string from a local module, then sets the text of a `div` element with the ID `message` to display “Hello VizHub!”. The page styling centers the large text via CSS. The code also includes a regular expression and a numeric constant but does not use them in any visible behavior.