content-visibility-with-popover-top-layer-and-auto-descendant-ref.html

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<!doctype html>

<meta charset="utf8">

<title>CSS Content Visibility: content-visibility: auto descendant in popover is shown on showPopover"</title>

<meta name="assert" content="content-visibility: auto descendant in popover is shown on showPopover">

<div id="spacer" style="height: 100vh"></div>

<div popover="manual" style="display: block; position: static;" id="popover">

  <span>Test passes if this is visible</span>

</div>

<script>

  popover.showPopover();

</script>