This example displays the text “Hello VizHub!” centered on a blank page. It uses D3.js to select the HTML element with the ID `message` and set its text content. The page’s styling is defined in a separate CSS file, which sets the text alignment, font size, and color. The code demonstrates a basic D3 workflow: importing D3 functions, using `d3.select()` to target a DOM element, and updating its content dynamically. The example runs in a simple HTML structure that loads D3 from a CDN and includes a JavaScript bundle.