This example displays an interactive world map where each country is rendered as a green SVG path with a black stroke. A blue sphere provides the background, and hovering over a country highlights it in orange. Built with D3.js v5 and TopoJSON, it uses `d3.geoPath` with `d3.geoEquirectangular` projection to draw the map from the world-atlas countries-110m.json data source. The SVG rendering is styled via CSS classes, with hover effects defined in the stylesheet.