This example demonstrates a minimal D3 v7 setup by displaying the text “Hello D3 version 7” in the center of the page. It shows the basic structure for starting a D3 project with a separate HTML file and bundled JavaScript module. The code imports the `select` function directly from the `d3` package and uses it to assign text to the `body` element. The HTML file loads D3 from a CDN and includes the bundle via a script tag, with large CSS font sizing for visual emphasis.