This example demonstrates a simple smiley face composed of three SVG circles: a large yellow circle for the head and two smaller black circles for the eyes. The visualization uses React 16.7.0, loaded via a UMD build from unpkg, to render the static SVG markup directly in the browser. The page is styled with CSS to remove margins and hide overflow, while the SVG canvas is set to 960 by 500 pixels. No interactive behavior or data binding is implemented; the circles are hardcoded with fixed coordinates and attributes.