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<!DOCTYPE html>
<html class=paused>
<title>View transitions: ensure correct style inheritance for pseudo tree</title>
<link rel="help" href="https://drafts.csswg.org/css-view-transitions-1/">
<link rel="author" href="mailto:khushalsagar@chromium.org">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
.paused::view-transition-group(*) {
animation-play-state: paused;
}
::view-transition {
background-color: red;
}
::view-transition-group(*) {
background-color: inherit;
color: blue;
animation-duration: 0.321s;
animation-delay: 0.05s;
animation-iteration-count: 2;
animation-direction: reverse;
animation-timing-function: linear;
}
::view-transition-image-pair(*) {
color: inherit;
overflow-x: clip;
}
::view-transition-old(*), ::view-transition-new(*) {
overflow-x: inherit;
}
</style>
<script>
promise_test(async () => {
assert_implements(document.startViewTransition, "Missing document.startViewTransition");
let transition = document.startViewTransition();
await transition.ready;
assert_equals(getComputedStyle(document.documentElement, "::view-transition").backgroundColor, "rgb(255, 0, 0)", "::view-transition");
assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(root)").backgroundColor, "rgb(255, 0, 0)", "group");
assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(root)").color, "rgb(0, 0, 255)", "group");
assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(root)").animationDuration, "0.321s", "group");
assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(root)").animationDelay, "0.05s", "group");
assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(root)").animationTimingFunction, "linear", "group");
assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(root)").animationIterationCount, "2", "group");
assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(root)").animationDirection, "reverse", "group");
assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(root)").animationPlayState, "paused", "group");
assert_equals(getComputedStyle(document.documentElement, "::view-transition-image-pair(root)").color, "rgb(0, 0, 255)", "wrapper");
assert_equals(getComputedStyle(document.documentElement, "::view-transition-image-pair(root)").overflowX, "clip", "wrapper");
assert_equals(getComputedStyle(document.documentElement, "::view-transition-image-pair(root)").animationDuration, "0.321s", "wrapper");
assert_equals(getComputedStyle(document.documentElement, "::view-transition-image-pair(root)").animationDelay, "0.05s", "wrapper");
assert_equals(getComputedStyle(document.documentElement, "::view-transition-image-pair(root)").animationTimingFunction, "linear", "wrapper");
assert_equals(getComputedStyle(document.documentElement, "::view-transition-image-pair(root)").animationIterationCount, "2", "wrapper");
assert_equals(getComputedStyle(document.documentElement, "::view-transition-image-pair(root)").animationDirection, "reverse", "wrapper");
assert_equals(getComputedStyle(document.documentElement, "::view-transition-image-pair(root)").animationPlayState, "paused", "wrapper");
assert_equals(getComputedStyle(document.documentElement, "::view-transition-old(root)").overflowX, "clip", "outgoing");
assert_equals(getComputedStyle(document.documentElement, "::view-transition-old(root)").animationDuration, "0.321s", "outgoing");
assert_equals(getComputedStyle(document.documentElement, "::view-transition-old(root)").animationDelay, "0.05s", "outgoing");
assert_equals(getComputedStyle(document.documentElement, "::view-transition-old(root)").animationTimingFunction, "linear", "outgoing");
assert_equals(getComputedStyle(document.documentElement, "::view-transition-old(root)").animationIterationCount, "2", "outgoing");
assert_equals(getComputedStyle(document.documentElement, "::view-transition-old(root)").animationDirection, "reverse", "outgoing");
assert_equals(getComputedStyle(document.documentElement, "::view-transition-old(root)").animationPlayState, "paused", "outgoing");
assert_equals(getComputedStyle(document.documentElement, "::view-transition-new(root)").overflowX, "clip", "incoming");
assert_equals(getComputedStyle(document.documentElement, "::view-transition-new(root)").animationDuration, "0.321s", "incoming");
assert_equals(getComputedStyle(document.documentElement, "::view-transition-new(root)").animationDelay, "0.05s", "incoming");
assert_equals(getComputedStyle(document.documentElement, "::view-transition-new(root)").animationTimingFunction, "linear", "incoming");
assert_equals(getComputedStyle(document.documentElement, "::view-transition-new(root)").animationIterationCount, "2", "incoming");
assert_equals(getComputedStyle(document.documentElement, "::view-transition-new(root)").animationDirection, "reverse", "incoming");
assert_equals(getComputedStyle(document.documentElement, "::view-transition-new(root)").animationPlayState, "paused", "incoming");
document.documentElement.classList.remove("paused");
await transition.finished;
}, "style inheritance of pseudo elements");
</script>
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