This example renders a world map using D3.js, loading GeoJSON country data from a remote URL and projecting it with the `geoArmadilloRaw` projection from `d3-geo-projection`. The map displays countries as green SVG paths with black strokes, generated through `d3.geoPath`. It imports `select`, `json`, and `geoPath` from D3, and uses TopoJSON’s `feature` utility to convert the data. The visualization is static, with no interaction, and the CSS sets a blue background.