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<!DOCTYPE html>
<title>Unrelated custom properties do not conflict with each other</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
@keyframes test {
0% { --x: green; }
100% { --x: green; }
/* This should not affect the background-color of #div: */
0% { --unused: yellow; }
}
#div {
animation: test 10s linear paused;
background-color: var(--x, red);
width: 100px;
height: 100px;
}
</style>
<div id=div></div>
<script>
test(() => {
assert_equals(getComputedStyle(div).backgroundColor, 'rgb(0, 128, 0)');
}, 'Unrelated custom properties do not conflict with each other');
</script>