This example demonstrates a minimal D3.js visualization that displays a custom text message on a webpage. It uses the `select` API from d3.v5 to target a `div` element with the ID `message` and sets its text content to a string imported from a separate ES6 module. The page is styled with a dark blue background, light text, and the Ubuntu font loaded via Google Fonts. The example highlights basic module imports, DOM manipulation, and CSS integration within the VizHub environment.