This example demonstrates a minimal D3.js v7 starter, rendering an empty SVG canvas that fills the browser window. The page sets the body text to an extremely large font size, though no text content is added. The code uses the `d3.select` API to append an SVG element, with its dimensions set from `window.innerWidth` and `window.innerHeight`. The visualization relies on the D3 library loaded from the unpkg CDN, with all JavaScript contained in a separate `bundle.js` file. No data or marks are drawn, making it a bare template for practicing D3 fundamentals.