File: relpos-inline-hit-testing.html

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<!DOCTYPE html>
<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
<link rel="help" href="https://www.w3.org/TR/css-break-3/#transforms">
<link rel="help" href="https://www.w3.org/TR/CSS22/visuren.html#relative-positioning">
<link rel="match" href="relpos-inline-ref.html">
<style>
  body {
      margin: 8px;
  }
  #target {
      position: relative;
      left: -100px;
      top: 100px;
      border: 1px solid;
      background: hotpink;
  }
</style>
<div style="columns:4; column-gap:0; column-fill:auto; line-height:30px; width:600px; height:60px; orphans:1; widows:1;">
  <br><br><br>
  <span id="target">
    line1<br>
    line2<br>
    line3<br>
    line4<br>
  </span>
</div>
<div id="log" style="margin-top:100px;"></div>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
  test(()=> { assert_equals(document.elementFromPoint(58, 153), target); }, "line1");
  test(()=> { assert_equals(document.elementFromPoint(208, 123), target); }, "line2");
  test(()=> { assert_equals(document.elementFromPoint(208, 153), target); }, "line3");
  test(()=> { assert_equals(document.elementFromPoint(358, 123), target); }, "line4");
  test(()=> { assert_not_equals(document.elementFromPoint(58, 123), target); }, "Above line1");
  test(()=> { assert_not_equals(document.elementFromPoint(358, 153), target); }, "Below line4");
  test(()=> { assert_not_equals(document.elementFromPoint(158, 48), target); }, "line1 before offsetting");
</script>