This example shows a static SVG face constructed from three yellow and black circles, paired with a React-rendered "Hello JSX" heading. The HTML page loads React 16.7.0 via UMD scripts and uses `ReactDOM.render` to mount the heading into a root div. The face itself is drawn directly with SVG `<circle>` elements in the markup, while the body uses inline CSS to remove margins and hide overflow. No JavaScript interacts with the SVG elements; the visualization is purely declarative HTML.