Hello VizHub
This example displays a large, centered “Hello VizHub” message on a dark blue background with white Ubuntu font, demonstrating the basic structure of a D3.js visualization project. It uses D3 v5’s `select` API to target the `#message` div and set its text content, while the message itself is defined in a separate ES6 module (`myMessage.js`) and imported via `index.js`. The styling comes from a linked CSS file that imports Google Fonts. The visualization shows how to combine modular JavaScript, D3 selection, and external styling in a minimal setup.