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<!DOCTYPE html>
<title>Invalidate :fullscreen based style</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<style>
#pass {
color: red;
}
:root:fullscreen #pass {
color: green;
}
</style>
<div id="pass">Should be green</div>
<script>
async_test(t => {
document.onfullscreenchange = t.step_func_done(() => {
assert_equals(document.fullscreenElement, document.documentElement);
assert_equals(getComputedStyle(pass).color, "rgb(0, 128, 0)", "Green when :root is fullscreened.");
});
document.documentElement.addEventListener('click', t.step_func(() => {
document.documentElement.requestFullscreen();
}), {once: true});
assert_equals(getComputedStyle(pass).color, "rgb(255, 0, 0)", "Initially red.");
test_driver.click(document.documentElement);
});
</script>
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