A stacked bar chart visualizes the distribution of IMDb movie ratings across six genres, with each bar segmented by five rating ranges from "below 5.0" to "above 8.5" as percentages. The visualization uses D3 v7 to load CSV data, applies `d3.stack()` to create stacked series, and renders SVG rectangles with `d3.scaleOrdinal` for color encoding. Interactive tooltips, implemented via mouse events, display the exact percentage for each rating segment on hover, while axes are generated using `d3.axisLeft` and `d3.axisBottom`.