Three pairs of shapes—a rectangle, circle, and chevron-like path—demonstrate the contrast between default SVG fill behavior and explicit stroke styling. The first set renders with only black fill, while the second set adds a thick black stroke and white fill. The page uses raw SVG elements (`rect`, `circle`, `path`) directly in the HTML, with no external libraries. All shapes are drawn using basic geometric coordinates and path data on a 960×500 canvas, illustrating fundamental SVG rendering properties.