This example shows a simple static smiley face composed of three SVG circles: a large yellow head with a black outline and two smaller black eyes. The circles are positioned using hard-coded coordinates in an HTML page, with the SVG canvas sized at 960 by 500 pixels. While the title hints at a future mouth, the current version only renders the head and eyes. The rendering relies on native SVG elements and CSS for styling, with no JavaScript libraries or data sources involved.