This example shows a single web page displaying the text “Hello HTML!” in a large, centered font. It demonstrates the fundamental structure of an HTML document with embedded CSS for styling and does not include any JavaScript logic. The page uses the standard HTML elements `<div>`, `<style>`, and `<head>` to organize content, with the CSS `font-size` and `text-align` properties applied to the message class. It serves as a minimal starting point for web-based projects.