A pink smiley face rendered in SVG animates its blinking eyes, shifting eyebrows, and a mouth that opens and closes. Built with D3.js v5, the example demonstrates core DOM manipulation through selections, shapes, and chained transitions. It uses `transition.attr` and `transition.attrTween` with the `arc` and `interpolate` helpers to animate the mouth’s angles and eyebrow position, while a recursive `blink` function cycles eye radii via timed transitions.