This example shows a yellow smiley face with black-outlined eyes and a curved mouth, rendered as an SVG graphic. The face is assembled using React components that generate SVG circles and a path, with the mouth drawn using D3’s `arc` generator. Positioned at the center of a 960x500 viewport, the face uses fixed constants for eye offsets, radius, and stroke width. The code leverages ReactDOM for rendering and D3 v5’s `arc` API, integrating both libraries within a single component structure.