This example shows a single, thick black polyline that zigzags diagonally across a white 960×500 SVG canvas. The path begins at the lower left, ascends upward with sharp directional changes, and ends near the upper right without closing the shape. The rendering relies purely on SVG markup and the path element’s `d` attribute, using absolute coordinates for line commands. No JavaScript libraries are referenced; only inline SVG and a minimal CSS stylesheet with `body { margin: auto; overflow: hidden; }` are used to center the graphic.