| <!DOCTYPE html> | |
| <meta name="viewport" content="width=device-width,initial-scale=1"> | |
| <style> | |
| pre, #log { | |
| position: absolute; | |
| top: 0; | |
| left: 200px; | |
| } | |
| </style> | |
| <iframe id="target-iframe" src="resources/observer-in-iframe-subframe.html" width="150px" height="150px"></iframe> |