A yellow circle with a black border forms a face, featuring two black eyes and a black mouth rendered as a simple line. Built with React and D3, the SVG face is centered in a 960×500 viewport, with each eye placed using fixed offsets and the mouth drawn via D3’s `arc` generator to produce a smile-shaped path. The face’s outline uses a thick stroke, while the eyes and mouth rely on basic SVG circle and path elements.