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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - `opacity, position, mix-blend-mode, filter` create a containing block"
href="https://bugs.webkit.org/show_bug.cgi?id=160886">160886</a>
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<th>Summary</th>
<td>`opacity, position, mix-blend-mode, filter` create a containing block
</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
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<th>Hardware</th>
<td>Macintosh
</td>
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<th>OS</th>
<td>OS X 10.10
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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>CSS
</td>
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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<th>Reporter</th>
<td>valdrinkoshi@gmail.com
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<pre>Created <span class=""><a href="attachment.cgi?id=286127" name="attach_286127" title="actual rendering">attachment 286127</a> <a href="attachment.cgi?id=286127&action=edit" title="actual rendering">[details]</a></span>
actual rendering
opacity, position, mix-blend-mode, filter should only create a new stacking context for its fixed descendants, and not create a containing block. Instead, in Safari this gets created, causing cropping of the fixed descendants
<a href="http://jsbin.com/coxoye/2/edit?html,output">http://jsbin.com/coxoye/2/edit?html,output</a></pre>
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