This example displays a minimal HTML page with a single large circle centered on an SVG canvas, accompanied by a bold "Hello HTML" heading. The page uses standard HTML elements and inline CSS to style the text and center the content. The circle is rendered using an SVG `<circle>` element with a radius of 200, though it has no fill or stroke specified, so it appears as an outline. No external libraries or JavaScript are used, making this a pure HTML and SVG starter template.