Fork of Hello HTML
This example shows a simple yellow smiley face drawn as a static SVG graphic. It uses React to define the SVG elements and D3’s `arc` generator to create the mouth path. The scene is rendered with ReactDOM into a root div, with fixed dimensions set for the SVG canvas. The face consists of three circles and one arc, all positioned within a transformed group, demonstrating basic integration of React and D3 for declarative vector drawing.