This example shows how to embed JavaScript directly in an HTML page alongside D3.js. It displays a large "Hello HTML!" message styled with CSS, while the bundled script.js and index.js modules log output to the console. The code imports named exports from something.js and other.js using ES module syntax, and loads D3 v7 from a CDN via a script tag. No data visualization is present; it demonstrates basic file structure and module wiring for a D3 starter project.