This example displays global COVID-19 cumulative death counts over time as multiple colored lines, one for each country. The visualization uses a logarithmic y-axis to accommodate the wide range of values, with grid lines extending across the chart from both axes. Built with React and D3 v7, the chart renders SVG paths using `d3.line`, `scaleTime`, and `scaleLog`, while axes are generated with `axisBottom` and `axisLeft`. Data comes from a CSV file processed with `d3.csv` and `timeParse`. Each country is assigned a random RGB stroke color.