This example displays a single large circle centered in an SVG canvas, rendered at an oversized font scale for dramatic effect. The page uses basic HTML structure with inline CSS to center the content and set a 13em font size, though no text is present. The circle is drawn via an SVG `<circle>` element with a fixed radius of 100 units, and the JavaScript logs "Hello JavaScript!" to the browser console. It demonstrates minimal integration of SVG markup and script execution within an HTML document, with no external libraries or data sources involved.