Two SVG circles demonstrate fundamental vector graphics rendering in a browser. The larger circle, centered at (50,50) with a radius of 50, and the smaller one, at (200,50) with a radius of 20, are drawn directly via the inline `<svg>` element in the HTML. Using only the native SVG API, the example shows how coordinate systems and visual attributes apply without JavaScript or external libraries, rendering static shapes against a 960-by-500 pixel viewport.