| <html> |
| <body style="margin: 0;"> |
| <svg xmlns="http://www.w3.org/2000/svg"> |
| <!-- The FO should be masked, with only the green half visible. --> |
| <defs> |
| <mask id="mask"> |
| <rect width="200" height="50" style="fill: #fff"/> |
| </mask> |
| </defs> |
| <foreignObject width="200" height="100" mask="url(#mask)" opacity=".5"> |
| <html xmlns="http://www.w3.org/1999/xhtml"> |
| <body> |
| <div style="background: green; height: 50px;"></div> |
| <div style="background: red; height: 50px;"></div> |
| </body> |
| </html> |
| </foreignObject> |
| </svg> |
| </body> |
| </html> |
