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<!DOCTYPE html>
<title>Remove current fallback @position-try rules</title>
<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
<link rel="help" href="https://issues.chromium.org/issues/411170230">
<style id="removeme">
@position-try --pf1 {
left: auto;
right: anchor(left);
top: 200px;
}
</style>
<style id="removemetoo">
@position-try --pf2 {
left: auto;
right: anchor(left);
top: 300px;
}
</style>
<style>
#anchor {
anchor-name: --a;
margin-left: 100px;
height: 100px;
background: hotpink;
}
#box {
position: absolute;
position-anchor: --a;
top: 100px;
left: anchor(right);
position-try-fallbacks: --pf1,--pf2;
width: 50px;
height: 50px;
background: cyan;
}
</style>
<div id="anchor"></div>
<div id="box"></div>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="support/test-common.js"></script>
<script>
promise_test(async () => {
// The base style option doesn't fit. The two others do fit.
// Remove them one by one.
await waitUntilNextAnimationFrame();
await waitUntilNextAnimationFrame();
assert_equals(box.offsetTop, 200);
removeme.remove();
await waitUntilNextAnimationFrame();
await waitUntilNextAnimationFrame();
assert_equals(box.offsetTop, 300);
removemetoo.remove();
await waitUntilNextAnimationFrame();
await waitUntilNextAnimationFrame();
assert_equals(box.offsetTop, 100);
}, "Remove fallback rules");
</script>
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