A bare-bones HTML page renders a single dark circle centered on an SVG canvas. The circle has no fill or stroke attributes, so it appears as a black shape against the white page background. The page uses inline CSS to remove margins and hide overflow, while the SVG element is sized at 960 by 500 pixels. The circle is positioned with its x-coordinate at 480 and a radius of 200, but its cy value is unspecified, defaulting to zero. This minimal example demonstrates the basic structure of an HTML document combined with an SVG shape element, with no external libraries or data sources involved.