This example displays a large, centered "Hello HTML!" message on a plain page. It uses a minimal setup with an HTML file linking a stylesheet and a module script. The styles.css file defines the message's appearance with a 13em font size and centered text alignment. The index.js file logs "hello world" to the console, and the HTML structure includes a title element and a single div container. It relies on standard web technologies—HTML, CSS, and vanilla JavaScript—without any external libraries or data sources.