Hello HTML
This example demonstrates the minimal structure required to render any content in a web browser, using only a bare HTML document with an empty body. It shows that a valid HTML page can exist without any JavaScript, CSS, or external libraries, relying solely on the browser's default rendering of the document object model. The code uses the standard HTML5 `<!DOCTYPE html>` declaration and basic `<html>`, `<head>`, and `<body>` elements, with no data sources or visualization APIs involved. This serves as a starting point for understanding how all web-based visualizations are ultimately built upon this foundational markup.