This example demonstrates the asynchronous loading of a CSV dataset containing CSS color names and their RGB hex values. While the data loads, a large "Loading..." message is displayed; once loaded, each row is rendered as a colored div block. The code uses React hooks (`useState` and `useEffect`) to manage state and trigger the data fetch via D3's `d3.csv` utility. The resulting visualization is a simple grid of color swatches, with each div’s background color set directly from the dataset’s `'RGB hex value'` field.