Fork of Let's Make a Face Part II
This example shows a simplified smiley face composed of a yellow circle with a black outline and two smaller circles for eyes, all dynamically sized and positioned relative to the browser window’s dimensions. The React application uses the `react` and `react-dom` libraries to render an SVG graphic, calculating coordinates from `window.innerWidth` and `window.innerHeight`. The code computes center points and offsets for the facial features, drawing the face with SVG `<circle>` elements within a transformed group, ready to be half of a complete expression.