This example presents a minimal SVG circle as a static data visualization, rendered directly in a web browser. The code defines a single circle element with hardcoded coordinates, demonstrating the fundamental use of SVG markup without any additional libraries. It pairs this SVG with a basic HTML page structure, showing the integration of vector graphics within a standard document. The example serves as a pure, framework-free introduction to SVG's shape elements and their attributes, such as `cx`, `cy`, and `r`, without any dynamic data or interaction.