This example demonstrates basic SVG shape rendering and styling using raw SVG elements alongside CSS rules. It displays circles, rectangles, lines, and a path, with some shapes using default black fills while others specify explicit fill colors like red and green. A grouped set of shapes applies a light blue fill and black stroke through an attribute, while a separate group with the class `lines` uses CSS to define stroke properties, with its path element overridden to use a red stroke and rounded line joins. The SVG is scaled using a transform, and the page layout removes margins and hides overflow.