This example demonstrates how to begin using D3 version 6 by displaying the text “Hello D3 version 6” in the center of a webpage. The visualization uses the D3 selection API, specifically `select`, to target the `body` element and set its text content. The page loads d3.v6.min.js from a CDN and includes minimal inline styling that sets a large font size for the body text. The example serves as a basic starting point for building more complex data visualizations with D3’s core functionality.