Four vertical rectangles of varying heights sit on a blank SVG canvas, approximating a bar chart without any axes or labels. The longest bar spans nearly the full height, while the shortest occupies only the bottom quarter. The example uses raw SVG `rect` elements with explicit `x`, `y`, `width`, and `height` attributes, all defined directly in the HTML. No JavaScript libraries or data-binding frameworks are present; the chart is a static, hand-coded approximation of a categorical comparison using only the SVG specification.