This example shows the temperature in San Francisco over time as a smooth line chart, with a grid of horizontal and vertical lines. It uses D3 v6 to load CSV data, create time and linear scales, and render axes with `axisLeft` and `axisBottom`. The line path is generated with `line` and a `curveBasis` interpolation. The visualization also includes axis labels and a title, all drawn as SVG elements within a React-based setup.