This example shows a yellow smiley face rendered as an SVG that scales to fit the browser window, with two black eyes positioned symmetrically on the face. Using React and ReactDOM, the code computes the center of the viewport and sets the face radius relative to the window height, while the eyes are placed at fixed offsets from that center. The SVG uses a translated coordinate group to position the circles, with the face filled in yellow and outlined with a black stroke.