File: elementFromPoint-mixed-font-sizes.html

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<!DOCTYPE html>
<link rel="help" href="http://www.w3.org/TR/cssom-view/#extensions-to-the-document-interface">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div style="font-size: 40px">
  <span id="target">
    XXX <span id="small" style="font-size:10px">small</span> YYY
  </span>
</div>
<script>
test(() => {
  // Find a point in the empty region above the "small" span, but still inside
  // the "target" span.
  const small = document.getElementById('small');
  const rect = small.getBoundingClientRect();
  const x = rect.left + rect.width / 2;
  const y = rect.top - 5;

  const actual = document.elementFromPoint(x, y);
  const target = document.getElementById('target');
  assert_equals(actual, target);
}, 'document.elementFromPoint finds container SPAN in the empty region above a child SPAN with a smaller font size');
</script>