Let's make a face
A stylized face is drawn as a single large circle in an SVG canvas, created by appending a circle element with a radius of 200 pixels to the root `svg` selection. The example demonstrates the minimal setup for D3 v5 rendering, using `select` from the `d3` module and chaining `.attr` to set the circle’s dimensions. The `styles.css` file hides page margins and overflow for a clean, full-viewport display. No interactive or animated behavior is included; the visualization simply shows the static geometric output of the appended shape.