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<!DOCTYPE html>
<html>
<head>
<title>CSS Shadow Parts - Invalidation Complex Selector</title>
<meta href="mailto:fergal@chromium.org" rel="author" title="Fergal Daly">
<link href="http://www.google.com/" rel="author" title="Google">
<link href="https://drafts.csswg.org/css-shadow-parts/" rel="help">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="support/shadow-helper.js"></script>
</head>
<body>
<style>#elem #c-e::part(partp) { color: red; }</style>
<script>installCustomElement("custom-element", "custom-element-template");</script>
<template id="custom-element-template">
<style>span { color: green; }</style>
<span id="part" part="partp">This text</span>
</template>
The following text should be green:
<div id="elem"><custom-element id="c-e"></custom-element></div>
<script>
"use strict";
test(function() {
const part = getElementByShadowIds(document, ["c-e", "part"]);
const before = window.getComputedStyle(part).color;
document.getElementById("elem").setAttribute("id", "new-elem");
const after = window.getComputedStyle(part).color;
assert_not_equals(before, after);
}, "Part in selected host changed color");
</script>
</body>
</html>
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