A stacked bar chart shows the percentage distribution of IMDb ratings across six genres, with each bar segmented into five rating ranges from below 5.0 to above 8.5. Hovering over a segment highlights it and displays a tooltip with the exact percentage. The chart uses d3.stack() to compute stacked series, d3.scaleOrdinal for colors, and d3.axisBottom with gridlines. Data comes from a CSV file loaded via d3.csv, rendered as SVG rects with mouse event handlers.