This example renders CSS named colors as a vertical sequence of colored strips. It loads color data from a CSV file using `d3.csv`, fetches it through React’s `useEffect` and stores it with `useState`, then maps each row to a `<div>` whose `backgroundColor` is set from the `RGB hex value` column. The visualization relies on React’s `ReactDOM.render` and D3’s CSV parser, producing a simple 960-pixel-wide swatch grid.