K3
This visualization displays a minimalist page with the text "Hello K" rendered in enormous type at 13em, centered via CSS. The example demonstrates the simplest possible D3 integration, where d3.select('body') targets the page body and .text('Hello K') replaces its content with the greeting. It uses D3 v7 loaded from a CDN, with interactive feedback available through browser developer tools. The bare HTML structure and plain JavaScript show how D3 can initialize and manipulate the DOM, serving as a foundational starting point for more complex visualizations.