This example demonstrates a minimal D3 setup by rendering the text “Hello D3 version 7” in the center of the page. It uses the D3 v7 library, imported via `select` from the ES module bundle, to target the body element and set its text content. The page’s large font size is defined in CSS, while the D3 script loads from a CDN and an external `bundle.js` file contains the main logic. No data or complex visualizations are involved; the focus is solely on initializing a D3 project.