This example shows a single bold "Hello VizHub!" message centered on a dark background using D3 v5 to select a div and set its text content. The message itself is defined in a separate ES6 module and imported into the main script. Styling relies on a Google Fonts-loaded Ubuntu typeface, with text rendered at a large size. The code demonstrates basic DOM manipulation with `d3.select` and ES6 module imports, though it contains no data or chart elements.