This example demonstrates basic geometric shapes—circles, rectangles, lines, and a path—rendered as SVG elements with CSS styling. It shows how presentation attributes like `fill` and `stroke` can be set either directly on elements, grouped in a `<g>` tag, or via CSS classes such as `.lines`. The code uses raw SVG markup within a React application, applying transforms for scaling and translation. The styling approach highlights CSS’s role in controlling stroke width, line joins, and colors, while the SVG namespace handles the coordinate-based drawing.