A horizontal bar chart displays population data for seven countries, ranked from most to least populous. The visualization highlights the dramatic difference between China and India and smaller nations like Serbia, using a stark black-and-lime aesthetic with a hot pink title. Built with D3 v6 in SVG, the code uses `d3.csv` to load data, `scaleLinear` and `scaleBand` for positioning, and custom axis formatting via `axisBottom` and `format('.3s')` to abbreviate values. The chart removes default axis domains and gridlines, replacing them with custom ticks and labels styled through external CSS.