<!doctype html> <script src="../../resources/js-test.js"></script> <style> #dialog::backdrop { background-color: green; } </style> <dialog id="target"></dialog> <script> description("Hit testing with ::backdrop style"); var dialog = document.getElementById("target"); dialog.showModal(); shouldBe("document.elementFromPoint(5, 5).id", "'target'"); dialog.close(); </script>