A stylized face drawn with D3.js animates its features on a dark background. The SVG canvas shows a yellow circle for the face, two black ellipses for eyes that transition between positions, and a rectangular mouth that widens and moves downward via D3 transitions. Using `d3.select` to fetch the SVG element and the `transition().duration()` API, the code orchestrates sequential transformations on the ellipse and rect attributes. All shapes are appended directly to the SVG, with eye motion repeating through chained transitions, while the face remains static.