This example shows a stylized face built with SVG shapes, including a yellow circle for the face, black rectangles for eyebrows, and a mouth drawn using an arc path. The code uses D3.js v5 selection methods and the `arc` generator to create the smile. A series of chained `transition().duration()` calls animate the eyebrow group vertically, making the eyebrows bounce up and down repeatedly. The visualization demonstrates how to combine static geometric elements with simple D3 transitions for a playful effect.