This example displays a single, unprepossessing SVG circle on a blank canvas, acting as a minimal starting point for HTML-based visualizations. The page is a bare HTML document that embeds an SVG element with a 960 by 500 pixel viewport. The circle is defined with an `r` radius of 100 but no fill or stroke, so it renders as a hollow outline. The code relies solely on native SVG markup within the HTML, without any JavaScript libraries, to establish the simplest possible rendering structure.