This example shows CSS named colors as a horizontal stacked bar chart, where each color is a thin rectangular strip. Using React and D3, the app fetches color data from a CSV file via D3’s `csv` utility, then maps each row to a colored `<div>` with a fixed width and height. The visualization relies on React’s `useState` and `useEffect` hooks for asynchronous data loading and rendering, with a “Loading…” message displayed until the data arrives.