SVG Fundamentals
This example demonstrates the foundational SVG shape elements, using a single red circle as the sole graphical entity. The code defines an inline `<svg>` container and places a `<circle>` element with explicit `cx`, `cy`, and `r` attributes to position and size it. No JavaScript libraries or data sources are involved; the visualization relies purely on static, hand-authored SVG markup. The page renders the shape directly in the browser, offering the most basic introduction to vector-based drawing on the web.