| <!doctype html> | |
| <link rel="help" href="https://drafts.csswg.org/css-tables/#content-model"> | |
| <link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1424656"> | |
| <link rel="match" href="iframe-display-table-content-insertion-ref.html"> | |
| <div><iframe | |
| id=f style="display: table-column-group"></iframe><script> | |
| document.body.offsetWidth; | |
| var span = document.createElement("span"); | |
| span.textContent = "This text should be before the iframe"; | |
| f.before(span); | |
| </script></div> |