This example presents a static SVG smiley face rendered on a 960x500 canvas, with a yellow circle for the head and two smaller black circles for eyes. The page also includes a React-based “Hello CodeSandbox” heading, demonstrating a minimal HTML starter template. The visualization is hand-coded directly in the HTML markup using SVG elements like `circle` with attributes for radius, position, fill, and stroke, while React 16.13.1 and ReactDOM set up the surrounding app structure.