This example shows a cartoon face constructed with D3.js v7, featuring a yellow head, eyes, eyebrows, and an arc-based mouth. The face is centered in a 960x500 SVG canvas using data-driven attributes for positioning. D3 transitions animate the eyebrows 50 pixels upward for two seconds, then back down. The code imports `select` and `arc` from the D3 library, loads D3 via UNPKG, and builds the shape using SVG circles, rectangles, and a path with `d3.arc()`.