[Webkit-unassigned] [Bug 171663] New: REGRESSION: Input and table-caption inside a table make the table automatically grow on input interaction

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=171663

            Bug ID: 171663
           Summary: REGRESSION: Input and table-caption inside a table
                    make the table automatically grow on input interaction
           Product: WebKit
           Version: Safari 10
          Hardware: Macintosh
                OS: macOS 10.12
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: timdegroote at hotmail.com

Created attachment 309051

  --> https://bugs.webkit.org/attachment.cgi?id=309051&action=review

Screenshot of the bug reproduced in JSBin

Assuming the following structure (with in between brackets the display properties of the element)

```
- div (table)
-- div (table-caption)
-- div (table-cell)
--- input
```

When:
- The input field is positioned absolutely.
- Any parent of the input field (which is not the main table element) is positioned relatively.

The table-caption div somehow moves down a few pixels anytime you:
- focus and blur the input field
- enter and remove a character in the input field

Reproduced in: http://jsbin.com/qovolelino/1/edit?html,css,output

This behaviour is not reproducible on Safari version 9.x

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