This example shows a yellow smiley face drawn using SVG shapes inside an HTML page. The face is built with a single large yellow circle for the head, which has a black outline, and two smaller black circles for the eyes. The React component imports the React and ReactDOM libraries, and it calculates the circle positions and sizes based on the browser window’s dimensions. The rendering is achieved through a React component that returns an SVG element, relying on the window’s width and height for the layout.