Each CSS color in the dataset is rendered as a horizontal strip, with the strip’s background color set to the color’s hex value. The React component uses the `useState` and `useEffect` hooks to load the data asynchronously via `d3.csv` from a GitHub gist, then maps over the loaded array to produce the list of colored divs. The example demonstrates how React’s declarative component model can directly generate SVG or HTML elements from parsed data, with a simple loading state shown until the CSV arrives.