This example demonstrates fundamental SVG shapes—two red and black circles and a blue-outlined rectangle—rendered directly in an HTML page. The markup defines a 960x500 SVG canvas, using basic elements like `<circle>` and `<rect>` with explicit coordinates and fill or stroke attributes. No JavaScript or external libraries are involved; the visualization relies purely on inline SVG within the static `index.html` file. It serves as a minimal, self-contained reference for understanding raw SVG syntax and positioning.