A minimal web page displays a summary of a CSV file’s size and shape, listing the data’s kilobyte count, row count, and column count as plain text. The React-based script loads the data from a GitHub gist of CSS named colors using d3.csv, then formats the message with d3.csvFormat and calculates the column count from the parsed data’s `.columns` array. The example demonstrates basic CSV loading and parsing with D3’s high-level API.