{"version":"1.0","type":"rich","title":"Coronavirus Basic Line Chart With 5,000,000 Marker Line","description":"This chart shows the global cumulative COVID-19 death toll over time, rendered as a black line that climbs steadily across the full window. A horizontal marker line at 5,000,000 deaths highlights when the total crossed that threshold. Built with React and D3 v7, it uses `scaleTime` and `scaleLinear` to map dates and death totals, while `line()` generates the SVG path from data fetched from the CSSE COVID-19 time series. The marker line is a simple SVG `<line>` positioned via the y-scale.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/9e452a9332a84ab795046cc3ed07ea4f?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}