A yellow smiley face with animated eyebrows demonstrates DOM manipulation with D3.js v5. The face is built using SVG primitives: a circle for the head, two circles for eyes, rectangles for brows, and a path generated with the `d3.arc` function for the mouth. Eyebrows move up and down through chained `transition().duration()` calls that change the group's transform attribute. The code imports `select` and `arc` from D3, sets coordinates dynamically from SVG dimensions, and runs entirely in the browser at 960x500 resolution.