A single static SVG smiley face renders a large yellow circle with two black eyes, centered on a 960-by-500 canvas. The drawing is hardcoded directly in the HTML using `<circle>` elements, while a separate React component, mounted via `ReactDOM.render`, displays a plain "Hello JSX" heading. Despite the title, no cat-like features or animation appear; the example combines raw SVG markup with React’s declarative rendering to show both approaches side by side in one page.