This example demonstrates a minimal D3 version 7 setup by using the `d3.select` method to find the `body` element and then calling the `.text()` method to insert the string "Hello D3 version 7". The page uses a large 13em font size for the text and loads D3 from the unpkg CDN, with the main logic separated into a `bundle.js` file. The result is a straightforward, single-element rendering that confirms the library is correctly initialized.