This example shows a simple CSV file summary interface that fetches a remote dataset and displays its basic properties—file size, row count, and column count—in a styled card. It uses the Fetch API to retrieve the CSV from a GitHub raw link, then parses it with `d3.csvParse` to determine the number of rows and columns. The summary text is injected into the DOM via `innerHTML`, and a helper function formats the file size using logarithmic scaling. The page relies on D3.js v6 for parsing and basic DOM manipulation, with no charting or visualization beyond textual metadata.