lor: green;
    top: 100px;
    left: 50px;
}
</style>
</head>
<body>
This tests top layer element stacking order after dynamically calling show/close and removal from the DOM tree.
The test passes if you see a green rectangle stacked on top of a blue rectangle, and see no red rectangles.

<dialog id="topDialog"></dialog>
<dialog id="bottomDialog"></dialog>
<dialog id="removedDialog" class="red">
    <dialog id="removedDialogChild" class="red"></dialog>
</dialog>
<script>
document.getElementById('topDialog'