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<base href="https://bugs.webkit.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - transition-duration doesn't work when using CSS variables"
href="https://bugs.webkit.org/show_bug.cgi?id=169402">169402</a>
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<th>Summary</th>
<td>transition-duration doesn't work when using CSS variables
</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>iPhone / iPad
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<th>OS</th>
<td>iOS 10
</td>
</tr>
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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>rmmpaderes@gmail.com
</td>
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<th>CC</th>
<td>dino@apple.com
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<p>
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<pre>As the title say, using a CSS variable for transition-duration doesn't work. However, if you use -webkit-transition-duration, it'll work fine.
Here's a sample CSS:
:root {
--accent-color: green;
--duration: 500ms;
}
.button {
transition-duration: var(--duration);
transition-property: color;
// Adding -webkit-transition-duration works
// -webkit-transition-duration: var(--duration);
}
.button:active {
color: var(--accent-color);
}</pre>
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