This example shows a simple humanoid figure assembled from SVG shapes, built with React and rendered through ReactDOM. The figure combines circles and rectangles to depict a head, body, legs, and arms, with CSS styling in the HTML file assigning a red fill to specific elements. The code defines reusable `Square` components and uses hardcoded coordinates and dimensions within an SVG canvas. It demonstrates basic React component composition and SVG rendering without external data or interactions.