This example demonstrates a minimal D3.js setup that loads the library via UNPKG and uses ES6 modules to display a static message. It shows how `import { select } from 'd3'` manipulates the DOM by setting the text of a `#message` div, while a separate local module (`myMessage.js`) exports the string content. The page also imports a stylesheet to center and scale the text with a 12em font size. The visualization itself contains no data or interactive elements.