File: will-change-inherit-dynamic.html

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<!doctype html>
<meta charset="utf-8">
<title>CSS Test: will-change: style changes are properly propagated to children if needed</title>
<link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io">
<link rel="author" title="Mozilla" href="https://mozilla.org">
<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1499991">
<link rel="help" href="https://drafts.csswg.org/css-will-change/#will-change">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id="outer">
  <div id="inner" style="will-change: inherit"></div>
</div>
<script>
  test(function() {
    assert_equals(getComputedStyle(outer).willChange, "auto");
    assert_equals(getComputedStyle(inner).willChange, "auto");
    outer.style.willChange = "color";
    assert_equals(getComputedStyle(outer).willChange, "color");
    assert_equals(getComputedStyle(inner).willChange, "color");
  }, "will-change change is properly propagated to children if needed");
</script>