| <!DOCTYPE html> | |
| <base href="http://www.example.com/"> | |
| <svg> | |
| <mask id="mask"> | |
| <rect y="50" width="100" height="50" fill="white"/> | |
| </mask> | |
| <rect width="100" height="50" fill="green"/> | |
| <g mask="url(#mask)"> | |
| <rect width="100" height="50" fill="red"/> | |
| <rect y="50" width="100" height="50" fill="green"/> | |
| </g> | |
| </svg> |