An SVG face centered on a 960×500 canvas uses D3 v5’s selection and arc APIs to build its features. Green and greenyellow circles form the head and eyes, while two rectangles animate as eyebrows via chained `transition().duration(2000)` calls, moving up and down over four seconds. A mouth path is generated with the `arc` function, using inner and outer radii with a half-turn angular sweep. The example demonstrates common SVG shapes and CSS styling within D3’s declarative, animation-capable rendering.