Closed
Bug 1323486
Opened 8 years ago
Closed 1 year ago
CSS variables inside CSS animation are not cascaded
Categories
(Core :: CSS Parsing and Computation, defect, P3)
Tracking
()
RESOLVED
DUPLICATE
of bug 1763376
People
(Reporter: dev.coding, Unassigned)
Details
Attachments
(1 file)
4.00 KB,
text/html
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Details |
User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:47.0) Gecko/20100101 Firefox/47.0 Build ID: 20160623154057 Steps to reproduce: Create a custom CSS property (CSS variable) inside an @keyframe rule. Apply the animation to an element. Actual results: The value of the custom property is well changing (if you use this value inside the @keyframe rules, it's well varying), but it is not cascaded to the element the animation is applied to nor to its child. Expected results: The value should be cascaded to the element and its child, since it's property (a custom one). Currently, Opera (v41) does not consider the custom property inside the @keyframes (the border stays as if there is no animation). Chrome Canary (v57) does apply the animation but without any transition inbetween.
Reporter | ||
Comment 1•8 years ago
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And in code-tech words (see showcase): This makes an animation @keyframes color2anim-expected { 0% { --my-color2-expected: #f00; color: var(--my-color2-expected); box-shadow: 1px 1px 8px 1px var(--my-color2-expected); border-color: var(--my-color2-expected); } 50% { --my-color2-expected: #ff0; color: var(--my-color2-expected); box-shadow: 1px 1px 8px 1px var(--my-color2-expected); border-color: var(--my-color2-expected); } 100% { --my-color2-expected: #00f; color: var(--my-color2-expected); box-shadow: 1px 1px 8px 1px var(--my-color2-expected); border-color: var(--my-color2-expected); } } .text-anim-expected { padding: 1em; margin: 1em; border: 4px dotted black; animation: 5s linear 0s infinite alternate none running color2anim-expected; } While this doesn't animate @keyframes color2anim { 0% { --my-color2: #f00; } 50% { --my-color2: #ff0; } 100% { --my-color2: #00f; } } :root { /* No animation, no matter whether --my-color2 is set here */ /*--my-color2: red;*/ animation: 5s linear 0s infinite alternate none running color2anim; } .text-anim { color: var(--my-color2); box-shadow: 1px 1px 8px 1px var(--my-color2); border: 4px dotted black; border-color: var(--my-color2); padding: 1em; margin: 1em; }
Component: Untriaged → CSS Parsing and Computation
Product: Firefox → Core
Updated•7 years ago
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Priority: -- → P3
Updated•2 years ago
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Severity: normal → S3
In version 112.0.2 the problem remains. The repoduction link in this issue is still relevant.
Is there any more information required for this to be confirmed has an issue?
Flags: needinfo?(emilio)
Comment 3•1 year ago
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This is a known problem. Bug 1763376 has some more diagnostics so duping there.
Status: UNCONFIRMED → RESOLVED
Closed: 1 year ago
Duplicate of bug: 1763376
Flags: needinfo?(emilio)
Resolution: --- → DUPLICATE
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Description
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