This example demonstrates basic SVG shape rendering in an HTML page. It shows overlapping circles in red and green, a navy line, a complex path forming a heart-like curve, and a black path with a relative coordinate segment. The code uses raw SVG elements—`circle`, `line`, and `path`—within an `<svg>` tag, with styles controlled by inline attributes like `fill`, `stroke`, and `stroke-width`. The page hides the body margin and overflow, and the drawing is fixed at 960 by 500 pixels, with no external libraries or data sources.