This example displays the text “Hello HTML” prominently centered on the page at a massive 13em font size, while also logging “Hello JavaScript!” to the console. It demonstrates a minimal HTML document with embedded CSS styling and a JavaScript script tag. The code uses plain HTML elements, CSS body rules, and the console.log API to illustrate basic web page structure and interaction. It serves as a simple starter template for understanding how HTML, CSS, and JavaScript combine in a single file.