chromium/third_party/blink/web_tests/external/wpt/css/css-cascade/revert-val-004.html

<!DOCTYPE html>
<title>CSS Cascade: using 'revert' with the 'all' property</title>
<link rel="help" href="https://drafts.csswg.org/css-cascade/#default">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
  div {
    display: inline;
  }
  .revert {
    all: revert;
  }
</style>
<div id=div></div>
<script>
  test(function() {
    let cs = getComputedStyle(div);
    assert_equals(cs.display, 'inline');
    div.className = 'revert';
    assert_equals(cs.display, 'block');
  }, 'The revert keyword works with the all property');
</script>