This example shows a minimal HTML page displaying the text “Hello HTML” in large, centered type, with a JavaScript console message that logs “Hello JavaScript!” when the page loads. It demonstrates the basic structure of an HTML document combining CSS for styling and JavaScript for interactivity. The code uses standard HTML elements like `<style>` and `<script>`, and the JavaScript relies on the browser’s built-in `console.log` API. It serves as a bare-bones starter template for web-based visualizations, with no external data sources or rendering libraries.