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<!DOCTYPE html>
<link rel="help" href="https://drafts.css-houdini.org/css-properties-values-api-1" />
<link rel="help" href="https://drafts.csswg.org/css-cascade/#default" />
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
#parent {
--inherited: 10px;
--non-inherited: 10px;
}
#child {
--inherited: 20px;
--non-inherited: 20px;
--inherited: revert;
--non-inherited: revert;
}
@keyframes revert_animation {
from {
--animated-inherited: revert;
--animated-non-inherited: revert;
}
to {
--animated-inherited: 100px;
--animated-non-inherited: 100px;
}
}
#animated_parent {
--animated-inherited: 0px;
}
#animated_child {
animation: revert_animation 10s -5s linear paused;
}
</style>
<div id=parent>
<div id=child>
</div>
</div>
<div id=animated_parent>
<div id=animated_child>
</div>
</div>
<script>
CSS.registerProperty({
name: "--inherited",
syntax: "<length>",
initialValue: "0px",
inherits: true
});
CSS.registerProperty({
name: "--non-inherited",
syntax: "<length>",
initialValue: "0px",
inherits: false
});
CSS.registerProperty({
name: "--animated-non-inherited",
syntax: "<length>",
initialValue: "0px",
inherits: false
});
CSS.registerProperty({
name: "--animated-inherited",
syntax: "<length>",
initialValue: "10000px",
inherits: true
});
test(function(){
let cs = getComputedStyle(child);
assert_equals(cs.getPropertyValue('--inherited'), '10px');
}, 'Inherited registered custom property can be reverted');
test(function(){
let cs = getComputedStyle(child);
assert_equals(cs.getPropertyValue('--non-inherited'), '0px');
}, 'Non-inherited registered custom property can be reverted');
test(function(){
let cs = getComputedStyle(animated_child);
assert_equals(cs.getPropertyValue('--animated-non-inherited'), '50px');
}, 'Non-inherited registered custom property can be reverted in animation');
test(function(){
let cs = getComputedStyle(animated_child);
assert_equals(cs.getPropertyValue('--animated-inherited'), '50px');
}, 'Inherited registered custom property can be reverted in animation');
</script>
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