This visualization shows the fluctuation of Bitcoin’s price over time as a blue area chart with an overlaid darkblue line, using SVG rendering. The chart includes labeled axes for Date and Price (USD) and an underlined title. The code loads a remote CSV file via `d3.csv`, parses dates with `d3.timeParse`, and builds the area and line paths using `d3.area` and `d3.line`. Axes are generated with `d3.axisBottom` and `d3.axisLeft`, while scales rely on `d3.scaleTime` and `d3.scaleLinear`.