This example displays a static geographic reference page for U.S. zip codes, featuring a prominent map image of Texas and a hyperlink to a CSV dataset linking zip codes to city and state names. The page uses D3 v7’s `d3.csv` to fetch and summarize the dataset, computing approximate file size in kilobytes, row count, and column count, though it does not render these results visually. The design is minimal, relying on basic HTML and CSS styling with a black-and-white text block and a centered header.