This example presents a pseudo vertical bar chart made entirely with hand-coded SVG rectangles, directly in the HTML without a charting library. The code uses the `<svg>` element and inline `<rect>` shapes, whose `height` and `y` positions encode the values for categories A through D, creating the visual hierarchy. Styling is applied via CSS classes and presentation attributes, with black-and-white fills and thick strokes outlining each bar. The text labels and the title rely on the `text` element and standard heading tags to annotate the chart.