This example displays the static text “Hello HTML” centered on a plain web page, styled with large 10em CSS typography. It demonstrates a minimal HTML document using inline CSS for visual presentation and JavaScript for browser console output. The code uses standard HTML elements, a `<style>` block for CSS styling, and a `<script>` tag to log “Hello JavaScript!” to the developer tools. The single-page rendering approach relies entirely on plain HTML, CSS, and JavaScript, with no external libraries or data sources.