This example shows a week of temperature measurements in San Francisco as a smooth line chart, plotted over time on the x-axis and temperature on the y-axis. The SVG rendering uses D3 v5's `scaleTime`, `scaleLinear`, `line`, and `curveBasis` to construct the path, with axes and labels generated by `axisBottom` and `axisLeft`. Data comes from a CSV file loaded via `csv()` from D3, and styled with CSS classes for ticks, grid lines, and the maroon line.