This example displays the text “Hello HTML” centered on a blank page using inline CSS with a 13em font size. The underlying code is a minimal HTML document that demonstrates the basic structure of a web page, including a `<head>` with title and style tags, and a `<body>` containing the displayed text. A `<script>` tag logs “Hello JavaScript!” to the browser’s console when the page loads, illustrating how to add client-side scripting alongside static content.