This example shows a blank page that responds to window resizing by filling the entire viewport. The chart container is positioned with fixed CSS properties (left, right, top, bottom set to 0px), so it always matches the browser window’s dimensions. The HTML includes a reference to the D3 library (d3.v5.min.js) via a CDN script tag, though no visualization or JavaScript logic is present. The page only sets up the resizable container structure, ready for future chart content, without rendering any data or interactive elements.