This example demonstrates how SVG shapes like circles, rectangles, lines, and paths can be styled using both inline attributes and external CSS. It shows a small grid of geometric forms where color, stroke, and transparency are controlled through presentation attributes—such as `fill` and `stroke-width`—and a `.lines` class with custom properties. The SVG is scaled via a `transform` attribute, and CSS rules define the body layout. The visualization uses raw SVG markup and a linked stylesheet, with no additional JavaScript libraries.