This example demonstrates fundamental SVG shapes and CSS styling for static vector graphics. It shows circles and rectangles with explicit fill colors, a grouped set with a shared fill and black stroke, and a polyline path connected by thick, rounded lines. The code directly uses SVG elements like `circle`, `rect`, `line`, and `path`, with CSS classes controlling stroke properties. Rendering relies on the browser’s native SVG support, with a `transform` scale applied to the entire drawing.