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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - CSS Transitions don't occur when parent elements lose/gain "display: flex""
href="https://bugs.webkit.org/show_bug.cgi?id=158184">158184</a>
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<th>Summary</th>
<td>CSS Transitions don't occur when parent elements lose/gain "display: flex"
</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 9
</td>
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<th>Hardware</th>
<td>Macintosh
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<th>OS</th>
<td>OS X 10.10
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>Normal
</td>
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<th>Priority</th>
<td>P2
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<th>Component</th>
<td>Animations
</td>
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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<th>Reporter</th>
<td>xymostech@gmail.com
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<th>CC</th>
<td>dino@apple.com
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<pre>Example URL:
<a href="https://jsbin.com/zekeko/edit">https://jsbin.com/zekeko/edit</a>
Steps to reproduce the problem:
1. Make a container with display: flex
2. Add a CSS transition property to children of the container
3. Attempt to trigger the transition at the same time as removing display: flex from the container
What is the expected behavior?
The CSS transitions should happen.
What went wrong?
The transitions don't occur; instead, the style updates immediately.
Also occurs in Chrome. Reported at <a href="https://bugs.chromium.org/p/chromium/issues/detail?id=615653">https://bugs.chromium.org/p/chromium/issues/detail?id=615653</a>#</pre>
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