This example shows a simple cartoon face drawn with SVG, featuring a yellow circular head, two black eyes, and a curved mouth. The face is centered within a 960×500 SVG canvas. The code uses D3 v6’s `select` and `arc` APIs to construct the shapes, with the mouth built via an arc generator specifying inner and outer radii and angular extents. Colored fills and strokes are applied through SVG attributes, while a CSS rule removes page margins for full-bleed rendering.