This example displays the static text "Hello HTML" in a large, centered 13em font, with a matching "Hello JavaScript!" message logged to the browser console. It uses plain HTML’s `<style>` block for CSS layout and a standard `<script>` tag to execute the JavaScript `console.log` call. The page relies on no external libraries or frameworks, serving as a minimal demonstration of the basic HTML, CSS, and JavaScript integration. The rendering is a simple DOM text node styled with the `text-align` and `font-size` properties.