This example demonstrates a simple data visualization that displays a text message centered on a web page. It uses D3 v5 (loaded via UNPKG) and HTML/CSS to render the output, with the `select` API from D3 targeting the `#message` div to set its content. The code imports a local ES6 module (`myMessage.js`) to supply the displayed text and uses a regular expression and a constant variable to illustrate basic JavaScript functionality within the VizHub environment.