This example displays a map of Japan, centered within a full-page layout, on a light gray background. The visualization is built using JavaScript and relies on the D3.js library for map rendering and geographic projections. The map is rendered to the screen through the use of SVG paths generated by D3’s geographic path generator, which converts GeoJSON data into viewable shapes. The page structure is defined in HTML and styled with CSS, while the map’s appearance and positioning are controlled entirely through the D3 code in the included script.