A starter template for D3 version 7, this example demonstrates the basic pattern of importing D3 modules and manipulating the DOM. The page displays the text "Hello D3 version 7" in a large font, using `select` from the d3 package. The code also logs a demonstration array and references remote data sources, including a GeoJSON file of local authority boundaries and a CSV about the Titanic, though these are not rendered visually. The HTML includes the D3 library via a CDN and a separate bundled JavaScript file.