This bar chart displays the population of the top 10 most populous countries, using 2018 estimates from the United Nations World Population Prospects. The visualization renders as an SVG with a clean, minimal layout, showing each country’s population value as a vertical bar. The chart is built with D3 v5, using the `d3.csv` function to load the dataset and `d3.scaleLinear` for the y-axis, while the bars are drawn with SVG `rect` elements. Data is stored in a CSV file and styled with a single CSS file.