This example displays a bar chart of Spanish parliamentary seat counts from the June GAD3 barometer, comparing four parties. It shows both an SVG version with styled rectangles and text labels, and an HTML/CSS version using divs with background colors and widths. The code loads CSV data with d3.csv, binds it to existing SVG elements, and uses D3 v5 methods like `.attr()` and `.text()` to set bar dimensions, colors, and party names. The visible source data includes party names, seat counts, and color codes.