This example shows a single black circle rendered inside an SVG canvas, demonstrating the foundational syntax for creating vector graphics with HTML and CSS. The code uses a minimal SVG `<circle>` element with `cx`, `cy`, and `r` attributes to specify its center coordinates and radius. It relies on the browser’s native SVG rendering, requiring no JavaScript or external libraries, and is written as a bare-bones HTML page. The example illustrates the core structure of SVG markup for positioning and shaping basic geometric primitives.