This example shows a line chart tracking website visits over a 100-day period, with a steady upward trend from 120 to 630 visits. Built with D3.js, it loads data from a CSV file using `d3.csv`, creates linear scales with `d3.scaleLinear`, and renders axes with `d3.axisBottom` and `d3.axisLeft`. The line itself is drawn using the `d3.line` generator, appended as an SVG path with a steelblue stroke, within an 800x500 SVG container.