This example renders a face using D3.js, HTML, CSS, and SVG. It displays a simple facial diagram composed of SVG shapes, showing how basic geometric primitives can be assembled into a recognizable figure. The code uses the `d3.select` API to target the SVG element and appends a circle as the initial facial component. The visualization relies on D3 v5 and renders entirely through SVG elements within an HTML page, demonstrating a minimal approach to creating vector-based illustrations with D3.