This example renders a large yellow smiley face that fills the browser window, with eyes positioned symmetrically around the center and a mouth implied by the face’s outline. The visualization uses React and ReactDOM to create SVG circle elements dynamically, calculating dimensions from `window.innerWidth` and `window.innerHeight` to ensure the face scales responsively. A `<g>` transform centers the drawing, while fixed offsets and radii define the facial features, with a black stroke on the main circle for contrast.