This example displays the text “Hello HTML” centered on a blank page, using a bare minimum HTML document. The page is styled with a CSS rule that sets the body’s text alignment to center and the font size to 13em. It demonstrates the fundamental structure of an HTML file, including the `<!DOCTYPE html>` declaration, a `<head>` section with a `<title>`, and a `<style>` block. The rendering relies entirely on the browser’s default HTML and CSS handling, with no external libraries or data sources.