position-visibility-remove-anchors-visible-ref.html

<!DOCTYPE html>
<meta charset="utf-8">
<style>
  #scroll-container {
    overflow: hidden scroll;
    width: 300px;
    height: 100px;
  }

  #target {
    width: 100px;
    height: 100px;
    margin-top: 100px;
    background: green;
  }
</style>

<div id="scroll-container">
  <div id="target">target</div>
</div>

<script>
  const scroller = document.getElementById('scroll-container');
  scroller.scrollTop = 100;
</script>

chromium/third_party/blink/web_tests/wpt_internal/css/css-anchor-position-inset-area-old/position-visibility-remove-anchors-visible-ref.html