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<!DOCTYPE html>
<link rel="help" href="https://drafts.csswg.org/css-anchor-1/#determining">
<link rel="author" href="mailto:kojii@chromium.org">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/check-layout-th.js"></script>
<script src="support/test-common.js"></script>
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
<style>
.container {
  font-family: Ahem;
  font-size: 10px;
  line-height: 1;
  width: 10em;
}
.relpos {
  position: relative;
}
.abspos {
  position: absolute;
}
.columns {
  column-count: 2;
  column-fill: auto;
  column-gap: 10px;
  column-width: 100px;
  width: 210px;
  height: 100px;
}
.anchor {
  anchor-name: --a1;
  background: orange;
}
.target {
  position: absolute;
  width: anchor-size(--a1 width);
  height: 10px;
  background: lime;
}
</style>
<body onload="checkLayoutForAnchorPos('.target')">
  <div class="container relpos xcolumns">
    <div style="height: 150px"></div>
    <div class="relpos">
      <span class="target" data-expected-width=20></span>
      <span class="relpos">
        <span class="target" data-expected-width=20></span>
        <span class="relpos">
          <span class="anchor">12</span>
          <span class="anchor abspos">123</span>
          <span class="target" data-expected-width=30></span>
        </span>
        <span class="target" data-expected-width=30></span>
      </span>
      <span class="target" data-expected-width=30></span>
    </div>
  </div>
</body>