Fork of Smiley Face Part II
This example renders a responsive smiley face whose circular head is sized to fit the browser window. It uses React and ReactDOM to create SVG elements, including a yellow face with black stroke and two eyes positioned symmetrically around the center. The layout adapts to the viewport dimensions by calculating coordinates from window.innerWidth and window.innerHeight. The code demonstrates declarative SVG construction with React components, setting circle attributes like radius, fill, stroke, and stroke-width directly in JSX.