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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/css-contain/container-queries/animation-nested-animation.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<title>Container Queries - Animations within animating container</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="support/cq-testcommon.js"></script>
<style>
@keyframes outer {
from { width: 100px; }
to { width: 300px; }
}
@keyframes inner {
from { background-color: blue; }
to { background-color: yellow; }
}
#container {
container-type: inline-size;
animation: outer 1s linear paused;
}
#target {
background-color: green;
}
@container (min-width: 200px) {
#target {
animation: inner 1s linear paused;
}
}
</style>
<div id=container>
<div id=target>
Test
</div>
</div>
<script>
setup(() => assert_implements_container_queries());
test(() => {
assert_equals(getComputedStyle(target).backgroundColor, 'rgb(0, 128, 0)');
assert_equals(container.getAnimations().length, 1);
let animation = container.getAnimations()[0];
animation.currentTime = 600;
assert_equals(getComputedStyle(target).backgroundColor, 'rgb(0, 0, 255)');
}, 'Animated container can create inner animation');
</script>