This example draws a simple smiley face using SVG primitives inside an HTML page. It shows a large yellow circle with a thick black stroke as the face, alongside two smaller black circles positioned for the eyes. The code directly constructs the `<circle>` elements within a 960-by-500 SVG canvas, using explicit `cx`, `cy`, and `r` attributes to place each shape. No JavaScript libraries are used; the rendering relies solely on static SVG markup.