This example displays an interactive world map using an equirectangular projection, with countries rendered as SVG paths and filled in light green. Users can zoom and pan the map via D3’s zoom behavior, while hovering over a country changes its fill color. The visualization uses `d3.geoPath` with `d3.geoEquirectangular` and `topojson.feature` to parse country boundaries from the world-atlas TopoJSON dataset. Hover interactions are styled with CSS, and the map’s ocean background is a sky-blue sphere path.