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<!DOCTYPE html>
<title>animation-timeline with multiple timelines</title>
<link rel="help" src="https://drafts.csswg.org/css-animations-2/#animation-timeline">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/web-animations/testcommon.js"></script>
<style>
main > div {
overflow: hidden;
width: 100px;
height: 100px;
}
main > div > div {
height: 200px;
width: 200px;
}
@keyframes top {
from { top: 100px; }
to { top: 200px; }
}
@keyframes bottom {
from { bottom: 100px; }
to { bottom: 200px; }
}
@keyframes left {
from { left: 100px; }
to { left: 200px; }
}
@keyframes right {
from { right: 100px; }
to { right: 200px; }
}
#top_scroller {
scroll-timeline: block top_timeline;
}
#bottom_scroller {
scroll-timeline: inline bottom_timeline;
}
#left_scroller {
scroll-timeline: block left_timeline;
}
#right_scroller {
scroll-timeline: inline right_timeline;
}
#element {
animation-name: top, bottom, left, right;
animation-duration: 10s;
animation-timing-function: linear;
animation-timeline: top_timeline, bottom_timeline, left_timeline, right_timeline;
}
/* Ensure stable expectations if feature is not supported */
@supports not (animation-timeline:foo) {
#element { animation-play-state: paused; }
}
</style>
<main>
<div id=top_scroller><div></div></div>
<div id=bottom_scroller><div></div></div>
<div id=left_scroller><div></div></div>
<div id=right_scroller><div></div></div>
<div id=element></div>
</main>
<script>
// Force layout of scrollers.
top_scroller.offsetTop;
bottom_scroller.offsetTop;
left_scroller.offsetTop;
right_scroller.offsetTop;
top_scroller.scrollTop = 20;
top_scroller.scrollLeft = 40;
bottom_scroller.scrollTop = 20;
bottom_scroller.scrollLeft = 40;
left_scroller.scrollTop = 60;
left_scroller.scrollLeft = 80;
right_scroller.scrollTop = 60;
right_scroller.scrollLeft = 80;
promise_test(async (t) => {
await waitForNextFrame();
assert_equals(getComputedStyle(element).top, '120px');
assert_equals(getComputedStyle(element).bottom, '140px');
assert_equals(getComputedStyle(element).left, '160px');
assert_equals(getComputedStyle(element).right, '180px');
}, 'animation-timeline works with multiple timelines');
</script>
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