This example shows a single gray circle centered on a blank SVG canvas, with no interaction or animation. The page is a minimal HTML document that embeds an inline `<svg>` element sized 960 by 500 pixels, drawing the circle using the SVG `<circle>` tag with a radius of 200. The code relies only on basic SVG and HTML, with CSS to remove page margins and hide overflow. No external JavaScript libraries or data sources are used; the rendering is entirely static and hard-coded.