A smiling face rendered as three SVG circles—two black eyes and a larger yellow head with a black outline—appears in a fixed 960×500 viewport. The example shows how static SVG markup can be embedded directly within an HTML document, with React 18 loaded via UMD script tags but not actually used for rendering the shapes. A console.log statement in the HTML head and in index.js demonstrates basic script execution alongside the declarative SVG, while the circle elements use explicit `cx`, `cy`, `r`, and fill attributes to define geometry and color.