smiley face
A single yellow circle with a thick black outline forms the face, centered on a plain SVG canvas. Two smaller black circles sit at the center of the face, creating the eyes and mouth in a simple, iconic smiley pattern. The visualization uses raw SVG elements—`circle` tags with explicit `cx`, `cy`, `r`, `fill`, and `stroke` attributes—rendered directly in the HTML document. No JavaScript libraries or data processing are involved; the graphic is purely static and defined entirely in markup. The page sets the body margin to zero and hides overflow for a clean, full-window presentation.