This example demonstrates a reusable chart component that adapts to the full browser viewport, redrawing itself on window resize. It applies the D3.js margin convention to separate the plotting area from axis labels, using `d3.scaleLinear` and `d3.axisLeft`/`d3.axisBottom` to render axes. A rounded rectangle fills the inner chart space, while an event listener triggers the render function to recompute dimensions on every resize.