This example demonstrates how to integrate D3 with ES6 modules and local CSS. The code uses the `select` function from the D3 API to target a DOM element by ID and set its text content to a message imported from a separate JavaScript module. It also shows how to load D3 from a CDN via a script tag while using modern import statements for both the D3 library and local files. The rendered output is a simple centered headline displaying “Hello VizHub!”.