A smiling face rendered with SVG primitives in a React application. The visualization uses two black circles for eyes and a large aqua circle with a black outline for the head, all positioned on a 960 by 500 canvas. The code demonstrates React component creation with arrow function syntax and renders the SVG via `ReactDOM.render`. The example uses the React and ReactDOM libraries loaded from unpkg, with styling defined in the accompanying `index.html` file.