<!DOCTYPE html>
<meta charset="utf-8">
<title>HTML Test: tabIndex getter return value</title>
<link rel="help" href="https://html.spec.whatwg.org/multipage/interaction.html#dom-tabindex">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
#scrollable {
  width: 100px;
  height: 100px;
  overflow: scroll;
}
#scrollable-inner {
  width: 1024px;
  height: 2048px;
}
</style>
<body>
<input>
<input type="hidden">
<button>button</button>
<button disabl