This visualization shows salary range distributions from a dataset, with each rectangle representing a salary bracket and its corresponding count. The code uses D3.js to load the CSV with `d3.csv`, parse the Count column, and bind the data to rectangles using `selectAll('rect').data()`. The implementation initializes a linear scale with `d3.scaleLinear` for the x-domain but does not yet apply it to the rectangle positions, leaving all bars fixed at 300×500 pixels. The SVG is rendered through the `index.html` and styled with CSS, while the sidebar layout is defined in `styles.css`.