This example displays a line chart of temperature readings over time, rendered as a single thick line across the full viewport. The visualization is built using the Vega-Lite API, with the chart specification defined in `viz.js` via `vl.markLine` and encodings for a temporal x-axis and quantitative y-axis. Data is loaded from a remote CSV file using D3’s `csv` function in `getData.js`. The rendering pipeline registers Vega, Vega-Lite, and a tooltip handler in `index.js`, with axes and label styling customized in `config.js`.