This example visualizes the counts of female and male entries from a small CSV dataset using a bar chart. It reads the data with D3’s `d3.csv` and renders proportional bars, highlighting the numerical difference between the two categories. The React-based interface uses `react-dom` to mount a component that calculates bar dimensions from the data, while CSS handles layout and basic styling. The chart is minimal, focusing on a clear, static comparison without interactive elements or animation.