This example shows a simple animated face built entirely with D3 version 6. A blue circle serves as the head, with two white eyes that blink by moving up and down via chained transition calls, each lasting 300 milliseconds. A mouth is drawn using the d3.arc function with configured inner and outer radii and specified start and end angles. All shapes are rendered as SVG elements within a 400x400 canvas, centered using a group transform.