SVG Fundamentals
This example demonstrates the foundational shapes of SVG graphics: a blue circle, a green rectangle with a red outline, and a navy diagonal line. The code uses raw SVG elements—`circle`, `rect`, and `line`—with explicit attributes for positioning, dimensions, and styling. It renders directly in the browser via an inline `<svg>` tag with a fixed 960 by 500 pixel viewport. The visualization serves as a static, code-level introduction to SVG drawing primitives, showing how coordinates, fill colors, and stroke properties are specified manually.