Smiley face 1
A yellow circle with two smaller black circles forms a simple smiley face rendered as an SVG graphic. The example demonstrates how to create basic shapes using React, with the `App` component returning SVG elements like `<circle>` and `ReactDom.render` mounting it to the DOM. The code imports React and ReactDOM from their UMD builds via CDN, computing positions and radii from fixed width and height variables. The face uses three circles: a large yellow base and two black eyes, each with stroke styling.