This example shows a stylized cartoon face drawn with D3.js, where the eyes animate horizontally in a playful loop. The face is constructed using SVG circles for the head and eyes, with a centered group transform positioning the features. The code uses D3 v5 selections and transitions, specifically `transition().duration()` to shift the eye group’s `transform` attribute over two seconds. Rendering is done via SVG in a React framework, with hardcoded dimensions and offsets defining the face’s geometry, and no external data source.