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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Items in a flexbox column layout are not properly constrained to the container's height if the item's height is larger than the container's height"
href="https://bugs.webkit.org/show_bug.cgi?id=167240">167240</a>
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<th>Summary</th>
<td>Items in a flexbox column layout are not properly constrained to the container's height if the item's height is larger than the container's height
</td>
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<th>Classification</th>
<td>Unclassified
</td>
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<th>Product</th>
<td>WebKit
</td>
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<th>Version</th>
<td>Safari 10
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<th>Hardware</th>
<td>Macintosh
</td>
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<th>OS</th>
<td>macOS 10.12
</td>
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>Normal
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<th>Priority</th>
<td>P2
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<th>Component</th>
<td>CSS
</td>
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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<th>Reporter</th>
<td>pguerrant@gmail.com
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=299348" name="attach_299348" title="Test Case">attachment 299348</a> <a href="attachment.cgi?id=299348&action=edit" title="Test Case">[details]</a></span>
Test Case
Steps to reproduce
1. Open the attached test case
2. note the height of the green and red box
Expected result:
The green and red boxes should both be the same size
Actual result:
The red box is taller - it appears that a flexbox layout with flex-direction: column does not properly constrain the height of items to the container when the item's height is larger than the container.
This bug only affects column layouts - when flex-direction is "row" the item's width is properly constrained to the container's width
Tested in other browsers - latest Chrome, Firefox and Edge - it works as expected - height of items is properly constrained.
Note that the behavior Safari is exhibiting is what you would expect when flex-shrink is set to 0 on the item, however in this test case the value of flex-shrink is the default (1)</pre>
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