This example demonstrates a customized bar chart of NFL career sack leaders, using data from a CSV file listing player names and sack counts. The chart uses D3 v5’s `scaleLinear` and `scaleBand` to map the data, with `axisLeft` and `axisBottom` to render the axes. The x-axis features a custom tick format via `format`, and grid lines are created with `tickSize`. Styling is applied through CSS, including custom font sizes, colors, and removal of the default axis domain lines, while the bars themselves are filled green.