This line chart visualizes the cumulative confirmed COVID-19 cases in the US from January to July 2020, with dates on the x-axis and case counts on the y-axis. The chart animates the line drawing using `d3.timer` and an easing function, with the line path calculated by `d3.line` and `curveBasis`. The visualization uses D3 v5 scales, axes, and SVG rendering, with data loaded from a CSV file. Axis lines and labels are styled via CSS.