Hello HTML
A minimal HTML page demonstrates the fundamental structure of web documents, separating content, presentation, and behavior into distinct layers. The example uses standard HTML elements to define a heading and a message div, relying on CSS for styling and JavaScript for interactivity. The rendering approach is straightforward browser parsing of the HTML file, with the only visible behavior being the static display of the "Hello HTML!" text. No external libraries are imported; the code showcases only raw HTML, CSS, and JavaScript APIs.