This example displays a static "Hello World" message in large text on a bare HTML page, alongside a hidden dataset of Hong Kong housing records. The code imports JSON data from `housingdata.js` using an ES module and defines a function that extracts estate names and coordinates, though it never invokes this logic. Instead, the visible output is set by directly assigning text to the DOM element via `document.getElementById("message-element").textContent`. The visualization does not use any charting library or rendering API; it simply shows plain text on an otherwise empty page.