A stylised line chart built with React and D3 v7 visualizes the daily high temperature changes in San Francisco over a week, with time on the x-axis and degrees on the y-axis. Using D3 utilities like `scaleLinear`, `scaleTime`, and `curveNatural`, it renders a smooth path through points and circles with tooltips showing exact time and temperature. The chart loads data from a CSV file via `csv` from D3, and uses a Raleway font with customized tick marks and axis labels for a clean, modern aesthetic.