This example is a minimal HTML page demonstrating how to combine CSS and JavaScript within a single file. It displays the large, centered text message “Hello HTML!” using a CSS class for styling. The code does not rely on any external libraries or frameworks, relying instead on native HTML structure, a `<style>` block, and the browser’s default rendering. It serves as a starting point for building more complex visualizations and is clearly analogous to a separately referenced React Starter template.