| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <style> | |
| iframe { | |
| display: block; | |
| width: 300px; | |
| height: 150px; | |
| margin: 20.33px; | |
| border: 4px solid black; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <p>There should be no gap between the black border and the green fill</p> | |
| <iframe srcdoc=" | |
| <style> | |
| html, body { | |
| width: 100%; | |
| height: 100%; | |
| margin: 0; | |
| } | |
| div { | |
| width: 100%; | |
| height: 100%; | |
| background-color: green; | |
| } | |
| </style> | |
| <body> | |
| <div></div> | |
| </body> | |
| "></iframe> | |
| </body> | |
| </html> |