This example displays a horizontal bar chart of the top 100 countries by happiness score, using the World Happiness 2021 dataset. The chart includes x- and y-axis tick labels but omits axis titles and a chart title, rendering as an SVG via React. The code constructs the visualization with d3.scaleBand for the categorical y-axis, d3.scaleLinear for the numeric x-axis, d3.max for scaling, and d3.csv to fetch and parse the data. Each country is drawn as a `<rect>` element positioned by the scales.