This example renders a simple smiley face using React and SVG. It draws a large yellow circle with a black stroke for the face, and two smaller filled circles for the eyes, positioned absolutely within the SVG canvas. The code uses React 18’s `createRoot` and `StrictMode` to mount an `App` component, while the SVG elements are hardcoded directly in the HTML file rather than generated dynamically. The setup demonstrates a basic integration of React with static SVG markup.