This example is a bare-bones HTML page that simply displays the text “Hello” in the browser body. It demonstrates the minimal structure required for any web-based visualization, with no external libraries, styles, or scripts. The page uses only core HTML tags (`<!DOCTYPE html>`, `<html>`, `<head>`, `<body>`) and does not include D3, Canvas, or other rendering APIs. The accompanying README links to a YouTube video but the code itself shows no data or interactive behavior. It serves as a starting point for more complex D3 v3 examples.