This example renders the text “Hello HTML” centered on a blank page using plain HTML and CSS, with no external libraries or JavaScript. The body’s `font-size` is set to 13em, creating a large, dominant display. The styling applies text alignment and font size directly within a `<style>` block in the document head. It serves as a minimal template for starting an HTML-based visualization, demonstrating the basic structure of a standalone web page without frameworks or data sources.