This example displays a summary of a dataset about UEFA Champions League club rankings, fetched as a CSV from a GitHub gist. It shows the file size in kilobytes, the number of rows, and the number of columns. The page uses D3 v5’s `d3.csv` to load the data and `d3.csvFormat` to measure its size, then writes the results into a `<pre>` element. Styled with CSS and HTML, it also includes a static yellow SVG circle and a red heading, demonstrating a basic React-free data visualization setup.