This example displays a simple text-based summary of a nutrition dataset, presenting the file size, row count, and column count in a styled HTML page. It uses D3 v5’s `d3.csv` to fetch data from a GitHub-hosted CSV file, then computes the size with `d3.csvFormat(data).length`, and writes the output into a `<pre>` element. The page also includes a static SVG image and relies on basic CSS for layout and typography, with React as the underlying framework.