This example shows a horizontal bar chart ranking the ten most populous countries, with custom-formatted axis labels and styled gridlines. It uses D3.js v7's `scaleBand`, `scaleLinear`, `axisBottom`, and `axisLeft` modules to position bars and ticks. The chart loads population data from a CSV file, multiplies the values by 1000, and renders bars as SVG rectangles. Custom tick formatting converts values to abbreviated notation, and chart elements are styled via CSS.