This line chart displays electronic sales totals over time, using a multi-year date range on the x-axis and cumulative sales figures on the y-axis. The visualization loads CSV data from a GitHub gist and renders a single black trend line in an SVG canvas. It employs D3 v5 APIs including `scaleTime`, `scaleLinear`, `axisBottom`, `axisLeft`, and `line` to generate axes with grid ticks and the path. The chart labels both axes and uses a skyblue background from its stylesheet.