This example demonstrates the foundational elements of SVG graphics, showing how basic shapes, paths, and text are constructed and styled. The visualization uses raw SVG elements within an HTML page, relying on CSS for styling and JavaScript for dynamic interaction. The code exercises core SVG APIs such as `createElementNS`, `setAttribute`, and `getBBox`, with no external libraries, providing a bare-bones reference for rendering vector graphics. Each shape and its attributes are explicitly defined, making the underlying coordinate system and rendering process transparent.