This example displays the text “Hello HTML” in large, centered type on a plain web page. It demonstrates the minimal structure of an HTML document, including a `<head>` with styling and a `<body>` containing the visible content. The page also includes an inline `<script>` that logs “Hello JavaScript!” to the browser’s developer console, showcasing basic client-side scripting. It uses no external libraries or frameworks, relying solely on standard HTML, CSS, and JavaScript.