This example demonstrates how to create and style geometric shapes using SVG elements and CSS. The page sets up an empty SVG canvas with dimensions of 960 by 500 pixels and loads D3.js version 6.2.0 from a CDN. The code initializes D3 and logs the library to the console, while the accompanying CSS applies margin and overflow styling to the body. The visualization relies entirely on SVG for rendering, with no data manipulation or dynamic shape generation visible in the provided implementation.