This example shows a stylized smiley face constructed from modular React components, rendered as SVG. The face combines a yellow background circle, two eyes, and an arc-based mouth, all positioned relative to a central coordinate system. The implementation uses React 17 for component composition and d3’s `arc()` generator to create the mouth path. The `FaceContainer` wraps the SVG and applies a translation transform, while the app passes explicit dimensions and offsets to control the face’s layout.