This example illustrates the foundational contrast between HTML and SVG rendering by displaying a large, centered “Hello HTML!” message using CSS styling. The code defines a simple HTML document with an embedded CSS rule that sets the font size and alignment of a div element. It serves as a minimal starting point for understanding how HTML, CSS, and JavaScript interact, with the HTML file serving as the sole structure and style source. The page does not yet incorporate any JavaScript or SVG elements, focusing purely on static HTML and CSS presentation.