A minimal D3.js example that displays a static "Hello VizHub!" message centered on the page. It demonstrates how to load D3 v5 from UNPKG, import the `select` function from the D3 library, and use a local ES6 module (`myMessage.js`) to supply the text content. The example also shows basic CSS styling for the message element. It serves as a simple template for structuring a VizHub project with separate HTML, JavaScript, and stylesheet files.