Customizing Axes
This bar chart displays the population of the top 10 most populous countries, using 2018 estimates from the United Nations World Population Prospects. The example focuses on customizing D3 axes, removing default domain lines and adding custom tick styling, axis labels, and a title. It uses `d3.scaleLinear` for the population axis and `d3.scaleBand` for countries, with `d3.axisBottom` and `d3.axisLeft` for rendering. The SVG output is styled via CSS, with tick lines in gray and large, muted text for readability.