This example demonstrates basic SVG shapes—circles, rectangles, lines, and paths—styled with CSS using inline attributes and classes. It shows how the same geometry changes appearance through fills, strokes, stroke-widths, and the `transform` attribute for scaling and translation. The code uses raw SVG in an HTML document with an external stylesheet, applying presentation attributes like `fill` and `stroke` directly on elements and grouping them with `<g>` tags. The `.lines` class in CSS defines stroke properties for the line and path elements.