A smiling face rendered with React and SVG uses hard-coded numeric values to position a yellow circle, two black eye circles, and a black stroke outline on a 960×500 canvas. The component structure relies on ReactDOM to mount an `<svg>` element containing three `<circle>` shapes, with dimensions and offsets defined as constants. No interactivity or animation is present; the visualization simply demonstrates static SVG drawing through React's declarative JSX syntax.