This example demonstrates loading and parsing a CSV file using D3.js, displaying the file size in kilobytes, row count, and column count in a styled HTML page. The visualization includes a decorative cityscape SVG illustration. The code uses `d3.csv` to fetch data from a GitHub gist and `d3.csvFormat` to calculate the data size. The page is built with HTML and CSS, featuring a highlighted heading and a large message container for the parsed data summary.