Shapes with SVG and CSS
This example displays a blank SVG canvas with a 1000x500 viewport, demonstrating the foundational setup for creating shapes using D3 v5 and CSS. The code initializes an SVG element and logs the `d3` object to the console, confirming the library is loaded. While the markup includes commented-out `<circle>` and `<rect>` elements, no shapes are actively rendered. The dashboard uses `d3.v5` via a CDN script tag, with styling handled through an external `styles.css` file that resets margins and hides overflow, preparing the environment for future data-driven visualizations.