This example renders a hierarchical family tree using D3 v6’s `d3.stratify` and `d3.tree` layouts. Orange circles represent family members, connected by animated maroon paths that grow from parent to child, while green labels fade in with a delay based on depth. The SVG is appended directly to the body, with all nodes and links transitioning over durations up to 1000 milliseconds. The static input data lists eleven parent-child pairs, rooted at “Dom”.