This line chart visualizes the Goods and Service Tax (GST) of a country across different years, using red axis labels and a thick black line to emphasize the trend. The code relies on D3 v5, specifically importing functions like `scaleTime`, `scaleLinear`, `axisLeft`, `axisBottom`, and `line` to construct the chart. Data is loaded from a CSV file hosted on GitHub, with years parsed using `d3.timeParse`. The SVG rendering applies green grid lines and blue tick text via CSS, while positional margins and axis tick formatting are handled through D3's layout utilities.