This example uses D3.js v5 to draw a yellow smiley face centered in an SVG canvas, with black-bordered circles for eyes and a path-shaped mouth created via the `d3.arc()` generator. The code demonstrates basic DOM manipulation by appending geometric shapes to a group element, then animates the eyebrows—two rectangles—through a two-second `transition().duration(2000)` sequence that moves them up and down once. Rendering is entirely SVG, with an embedded YouTube video illustrating the resulting motion.