This example shows a simple yellow smiley face drawn as a circle with two black eyes, all rendered as SVG elements inside a React application. The code uses ReactDOM to mount a functional App component to a root div, and constructs the visual directly with SVG circle elements. It relies on the React library loaded from unpkg CDN and demonstrates basic JSX syntax for static graphics. React 17.0.2 and react-dom are the core dependencies, with the SVG output rendered directly in the browser.