opovers()[0];
    const hint2 = getPopovers()[1];
    hint1.showPopover();
    assertState([true,false]);
    hint2.showPopover();
    assertState([true,true]);
    hint1.hidePopover();
    assertState([false,false]);
  },'You can nest hint popovers');
  </script>
</div>

<div>
  <div popover="hint">Hint
    <div popover>Nested auto (note - never visible, since inside display:none subtree)</div>
  </div>
  <script>
  test(() => {
    const hint = getPopovers()[0];
    const auto = getPopovers()[1];
    hint