This example displays a large “Hello World!” message in glowing white text on a dark navy background, styled with the Ubuntu font. The page uses plain JavaScript to update the content of an HTML `<pre>` element via `textContent`, while the stylesheet imports the Ubuntu typeface from Google Fonts and applies a centered layout with a high-contrast color scheme. The code includes separate HTML, JavaScript, and CSS files, with the main script running after a bundled file loads, though no data source or visualization library is used.