This example displays the text “Hello D3 version 7” prominently on a blank page, using a large font size for a straightforward visual demonstration. It shows a minimal single-page setup that imports D3’s `select` function and applies it to the body element to set its text content. The page loads D3 v7 from a CDN and uses a separate `bundle.js` file for the main script, with the styling defined in an HTML `<style>` block.