This example displays a series of black rectangles of varying heights and widths arranged on a white 960×500 SVG canvas, creating an abstract geometric composition. The rectangles are positioned at different coordinates, with some overlapping in their vertical extents. The visualization uses raw SVG elements defined directly in the HTML markup, including `<svg>`, `<rect>`, and inline styles for sizing and placement. No JavaScript libraries or data processing are involved; the rendering relies solely on static SVG attributes such as `x`, `y`, `width`, and `height` to define the layout.