A horizontal bar chart displays the happiness scores of ten countries, using a steelblue fill for each bar. The visualization customizes the axes with D3.js v5 APIs, including `scaleLinear` for the score axis, `scaleBand` for the country axis, and `axisLeft`/`axisBottom` for rendering the tick marks. The SVG chart, drawn via the `select` and `append` methods, reads data from a local CSV file and sets a large font size for all text labels.