This stacked bar chart visualizes the distribution of movie ratings across six genres, showing the percentage of ratings in five categories from "below 5.0" to "above 8.5". The chart uses `d3.stack()` and `d3.scaleOrdinal` for color encoding, with a linear x-axis for percentages and a band scale for genres. Hovering over a segment triggers `d3.select` and tooltip updates via `d3.mousemove`, displaying the exact percentage. The SVG is rendered with `d3.axisBottom` and `d3.axisLeft`, while data is loaded from a CSV file containing the genre and rating proportions.