sample
This example shows a minimal D3.js starter template that renders the text “Hello D3” centered on a blank page. The visualization demonstrates basic DOM selection and content manipulation using the `d3.select` API, specifically targeting the `<body>` element and setting its text content. The code is structured as an ES6 module, importing `select` from D3 v7 via an import map in the HTML, and applies CSS styling for font size, alignment, and top margin. No data source is used; it serves purely as a foundational setup for D3 projects.