This example demonstrates a basic React application that renders a static HTML page with a title and a simple message. The code uses `ReactDOM.render` to mount a functional component, `App`, which returns a JSX heading reading “HELLO JSX”. The page includes commented-out SVG circle elements, suggesting an intended smiley face graphic that is not active. The implementation relies on React 17 and ReactDOM from unpkg CDN, with the component defined in `index.js` and executed through a bundled script.