This example demonstrates a minimal setup for D3 version 7, displaying the text "Hello D3 version 7" in the center of the page at an oversized font size. The code imports the `select` function from the D3 module and uses it to set the body’s text content. The page loads D3 from a CDN and references a separate `bundle.js` file, while a linked video shows how to begin using D3 version 6 for context.