| <svg xmlns="http://www.w3.org/2000/svg"> | |
| <defs> | |
| <filter id="light" primitiveUnits="userSpaceOnUse"> | |
| <feSpecularLighting lighting-color="blue" surfaceScale="5" specularConstant="10" specularExponent="6"> | |
| <feDistantLight azimuth="0" elevation="30"/> | |
| </feSpecularLighting> | |
| </filter> | |
| </defs> | |
| <rect width="40" height="20" filter="url(#light)" fill="black"/> | |
| </svg> |
