This example shows an interactive 3D scatter plot of the classic Iris dataset, with sepal length, sepal width, and petal length mapped to the x, y, and z axes. The plot uses Plotly’s `scatter3d` trace to render markers, while D3’s `csv` method loads the data from a GitHub gist. The code applies pastel-colored axis panels, white gridlines, and zero lines within the `scene` layout, and removes the default margins for a clean, immersive view.