SVG Demo
This example displays static geometric shapes composed of a red circle, a navy line, and a red rectangle with a thick navy border, all positioned on an 800-by-500 SVG canvas. The SVG markup defines each shape using standard `circle`, `line`, and `rect` elements, with explicit coordinates and styling attributes such as `fill` and `stroke`. It demonstrates the fundamental approach of creating vector graphics directly within an HTML document using inline SVG, without relying on JavaScript libraries or external data.