This example shows the first step toward building a smiley face in SVG, displaying a yellow circle with two black eye circles positioned on a 960×500 canvas. The rendering uses plain SVG elements with React 16.9, where `ReactDOM.render` mounts a minimal "Hello JSX" component into the root div, though the visible graphics are drawn directly in the HTML markup rather than through React. The SVG circles are styled with fill, stroke, and stroke-width attributes, with the face's center at (480, 250) and eyes offset horizontally to (350, 180) and (600, 180).