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<!DOCTYPE html>
<link rel="author" title="Tim Nguyen" href="https://github.com/nt1m">
<link rel="match" href="modal-dialog-backdrop-opacity-ref.html">
<link rel="help" href="https://fullscreen.spec.whatwg.org/#user-agent-level-style-sheet-defaults">
<style>
dialog::backdrop {
background-color: rgb(0, 128, 0);
opacity: 0.5;
}
dialog:focus {
outline: none;
}
</style>
<body>
<dialog>Test passes if you see a green backdrop at half opacity.</dialog>
<script>
document.querySelector('dialog').showModal();
</script>
</body>
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