Smiley Face
A yellow circle with a black outline forms the face, centered within an SVG canvas. Two smaller black circles positioned on the upper half serve as eyes, creating a simple smiley face icon. The page is a minimal HTML document that uses raw SVG elements—`circle` tags with `cx`, `cy`, and `r` attributes—to draw the shapes, with CSS setting the body to fill the viewport. No JavaScript or external libraries are involved; the visualization relies entirely on static SVG markup.