This example demonstrates a minimal web page that loads D3.js via a CDN and renders a root element into which JavaScript draws content. It uses the D3 v5 library within an HTML structure, with a separate `bundle.js` file containing the application logic. The page initializes a blank `div` with the ID `root`, and the script leverages D3 to create dynamic visualizations. The setup shows a basic integration of D3.js into a standard HTML document, serving as a starting point for more complex projects.