This example shows a static HTML page with an SVG canvas containing a single unfilled circle. The page uses no JavaScript libraries or external resources, relying solely on native SVG markup embedded directly in the HTML. The circle is defined with a radius of 200 units but has no fill or stroke specified, making it invisible against the default white background. The code demonstrates a minimal SVG setup within an HTML document, with the body margin removed via CSS to eliminate any surrounding whitespace.