| <!DOCTYPE html> | |
| <style> | |
| .box { | |
| width: 200px; | |
| height: 200px; | |
| margin: 20px; | |
| background-color: green; | |
| filter: url(#composite); | |
| } | |
| </style> | |
| <div class="box"></div> | |
| <svg width="0" height="0"> | |
| <filter id="composite" x="-0.5" y="-0.5" width="2" height="2"> | |
| <feFlood x="100" y="100" width="200" height="200" flood-color="red"/> | |
| <feComposite operator="arithmetic" k4="1" in="SourceGraphic"/> | |
| <feColorMatrix values="0 0 0 0 0, 0 1 0 0 0, 0 0 0 0 0, 0 0 0 1 0"/> | |
| </filter> | |
| </svg> |