This example visualizes the annual salaries of 20 employees as a horizontal bar chart, with each bar’s length encoding salary magnitude and yellow fill distinguishing marks. Built with React for component state and D3 v5 for scales and data loading, it uses `d3.csv` to fetch a remote dataset, `scaleBand` for y-axis positioning, and `scaleLinear` for x-axis values. Custom SVG rendering draws axis ticks, gridlines, and rectangles, while manual text labels replace D3’s axis generators.