This example renders a partial smiley face using React and SVG. It shows a yellow circle with a black stroke as the head, two dark eye circles, and two white pupil circles offset slightly from the eyes. The code defines a React functional component `App` that returns an SVG element, using static numeric constants for width, height, and offset values. It leverages `ReactDOM.render` to mount the component into the DOM, with React and ReactDOM loaded from a CDN.