This example demonstrates a minimal React setup that renders a simple "Hello HTML" page inside a web browser. It shows how React’s `createRoot` and `render` methods can mount a component into a DOM element, while loading the library via CDN scripts from unpkg. The code uses `ReactDOM.createRoot` (or the older `ReactDOM.render` equivalent) and imports React and ReactDOM directly, though the actual UI content is not defined in the provided files; instead, it relies on a hardcoded root element with the `id` of `root`. The rendering approach is a blank HTML shell with no visible data or chart.