if-initial-unregistered.html

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This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /css/css-values/if-initial-unregistered.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>CSS Values and Units Test: Explicitly testing for the initial value of a custom property</title>

<link rel="help" href="https://drafts.csswg.org/css-values-5/#if-notation">

<link rel="help" href="https://issues.chromium.org/issues/428131125">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<div>

  PASS if green

</div>

<style>

  div {

    color: if(style(--x:initial): green; else: red);

</style>

<script>

  test(() => {

    let cs = getComputedStyle(document.querySelector('div'));

    assert_equals(cs.getPropertyValue('color'), 'rgb(0, 128, 0)');

  }, 'if-testing the initial keyword without any property registrations');

</script>