Fork of D3 Hello World
This is a minimal D3 version 6 hello-world example that displays the text “Hello D3 version 6” in the center of the page, scaled to fill the viewport with a 13em font size. It uses `d3.select` to target the empty `body` element and the `.text` method to insert the string, relying on the D3 v6 library loaded from a CDN. The page contains no interaction or data, serving only to verify that D3’s core selection API works in a basic HTML setup.