| <svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> | |
| <defs> | |
| <filter id="blur"> | |
| <feGaussianBlur stdDeviation="3" edgeMode="duplicate"/> | |
| </filter> | |
| </defs> | |
| <g filter="url(#blur)"> | |
| <rect x="20" y="20" width="140" height="140" fill="green"/> | |
| <rect x="40" y="40" width="100" height="100" fill="blue"/> | |
| </g> | |
| </svg> |
