A demonstration of basic SVG line rendering shows a set of black and red axis-aligned strokes on a 960-by-500 canvas, visually constructing a grid-like framework. The example uses raw SVG elements, specifically `<line>` tags with explicit `x1`, `y1`, `x2`, and `y2` coordinates, to draw each segment. The red lines form rectangular boundaries while a single black vertical line divides the space. No external libraries are used; the rendering relies entirely on native SVG markup and CSS reset styling, with the viewport fixed and overflow hidden.