This example demonstrates the basic setup of a VizHub project using D3.js. It loads D3 v5 from UNPKG and uses ES6 module imports to bring in the `select` function from D3 and a local module exporting a message string. The code selects a `div` element with an ID of "message" and sets its text content to "Hello VizHub!". The page also imports CSS from a local stylesheet that centers the message and sets its font size to 12 em.