This example displays a static text message, “Hello HTML,” inside a `<pre>` element on a plain HTML page. It demonstrates a minimal React-free setup using vanilla JavaScript, where `document.getElementById` updates the element’s `textContent` with the string `'hello'`. The page includes an empty CSS block and a script tag loading `index.js`. No data sources or visualization libraries are used; it serves as a bare-bones starter template for integrating React or other frameworks later.