This example demonstrates how a D3.js visualization can adapt to browser resizing by redrawing an SVG to fill the available viewport. A green, semi-transparent X is rendered across the entire chart area, with its coordinates recalculated on every window resize event. The code uses `d3.select` to manage the SVG element and the native `window.addEventListener("resize")` to trigger the redraw function, which reads the container’s `clientWidth` and `clientHeight` to set the SVG’s dimensions. The data comes from a CSV file, though it is only logged to the console and not visualized here.