SVG fundamentals
This example demonstrates the fundamental SVG shapes, specifically a single circle element with defined center coordinates and radius. The circle is rendered directly within an inline `<svg>` tag in the HTML document, with no external JavaScript libraries or data sources involved. The rendering relies purely on the browser's native SVG support, using the `cx`, `cy`, and `r` attributes to position and size the shape. The code exists as a static HTML file, serving as a minimal introduction to SVG’s vector graphics markup.