A stacked horizontal bar chart displays the distribution of movie ratings across five genres, breaking down percentages into five categories from below 5.0 to above 8.5. Each genre row is divided into colored segments representing rating proportions. The visualization uses D3 v7 with stacked bar geometry via `d3.stack`, ordinal color scaling through `d3.scaleOrdinal`, and axes configured with `d3.axisBottom` and `d3.axisLeft`. Animated tooltips appear on hover, implemented with `transition().duration(200)` and a positioned HTML overlay.