This example shows a minimal HTML page displaying the text "Hello HTML" in the browser, styled with CSS to center the content and enlarge the font size. It demonstrates the basic structure of an HTML document, including a `<style>` block and a `<script>` tag. The JavaScript code logs "Hello JavaScript!" to the browser’s console. The page uses no external libraries, relying instead on plain HTML, CSS, and the built-in `console.log` API.