This example renders a yellow smiley face with two eyes and a mouth using React and SVG. The face is centered within a 960×500 viewport, with the head drawn as a circle and the mouth constructed via a d3.arc() path using specified inner and outer radii and angular ranges. The code uses ReactDOM to mount the component and leverages D3 v6’s arc generator for the curved mouth shape. All elements are positioned using inline transform attributes.