Smiley Face Part 1
A minimalist React application renders a yellow circular face with a black outline using SVG circle elements. The code defines a static, centered circle with a radius of 245 pixels, positioned at coordinates (480, 250) in a 960x500 viewport. React 18.2.0 and ReactDOM are loaded via UMD builds, and the component is mounted into a root div using the `createRoot` API. The visualization only shows the head—no eyes, mouth, or other facial features—serving as the first part of a smiley face illustration.