This example demonstrates a minimal D3.js setup that renders the text “Hello 3 version 7” directly into the body of an HTML page. It uses the `select` API from D3 v7 to target the body element and set its text content. The page loads D3 from a CDN, while the main logic is contained in a separate `bundle.js` file. The document includes basic styling that centers the text and sets a large font size.