This example demonstrates the simplest possible SVG graphic: a plain circle with no fill or stroke, centered in an HTML page. The code creates the circle using an inline `<svg>` element with a `<circle>` tag, setting only the radius to 100 units. It relies on built-in HTML and SVG capabilities, requiring no external JavaScript libraries or data sources. The page’s title, "Hello HTML," reflects the focus on minimal markup, and the rendering is handled directly by the browser’s SVG engine.