This example uses React and D3 to render CSS named colors as horizontal bars. It loads a CSV file of color names and their RGB hex values via `d3.csv`. Using React’s `useState` and `useEffect`, the data is fetched and stored as state, initially showing a "Loading..." message. Once data arrives, the app maps each row to a `<div>` element with its background color set to the hex value, creating a stacked color strip. The visualization emphasizes React’s state-driven rendering with D3’s data loading utilities.