This example displays the text “Hello HTML” in large, centered type against a blank page. It demonstrates a minimal HTML document that pairs CSS for layout and styling with JavaScript for browser interactions. The code uses a standard `style` block to set the body’s font size and alignment, and an inline `script` that calls `console.log` to output “Hello JavaScript!” to the developer tools. No external libraries or data sources are involved, showing the core mechanics of a static web page.