This example displays the text “Hello HTML” centered on a blank page with a CSS font size of 13em. It demonstrates basic DOM rendering and JavaScript console logging, opening the browser developer tools to print “Hello JavaScript!”. The code uses plain HTML, CSS styling, and a script tag with `console.log`, requiring no external libraries or data processing. The included `data.json` file, containing categorical and numeric pairs, is not read or visualized in the current implementation.