This example shows a smiling face rendered as a yellow circle with two black eyes, centered on a responsive SVG canvas that fills the browser window. The face is built using React components, with the SVG circle elements positioned relative to the screen’s center coordinates. The code uses React 16.9 and ReactDOM to render the scalable vector graphics, calculating the head radius and eye offsets from the window dimensions. The mouth is not implemented, leaving only the head and eyes visible in the final output.