This example displays a simple web page that renders the text “Hello VizHub!” in large, centered type. It serves as a minimal demonstration of a basic D3.js setup, showing how to structure a project with separate files for markup, styles, and logic. The code imports the `select` function from D3 v6 to target the `div` with id `message` and sets its text content using the `message` constant exported from an ES6 module. Styles are applied via a linked CSS file, controlling font size and alignment.