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+<!DOCTYPE html>
+<html class="reftest-wait">
+<meta charset="utf-8">
+<title>CSS Test: intrinsic contribution of ::marker</title>
+<link rel="author" title="Oriol Brufau" href="mailto:obrufau@igalia.com">
+<link rel="match" href="marker-intrinsic-contribution-002-ref.html">
+<link rel="help" href="https://drafts.csswg.org/css-pseudo-4/#marker-pseudo">
+<link rel="help" href="https://drafts.csswg.org/css-sizing-3/#intrinsic">
+<meta name="assert" content="Checks that that the intrinsic contribution of a ::marker is updated when 'list-style-position' changes.">
+<style>
+li {
+  border: 5px solid;
+  float: left;
+  clear: left;
+}
+.inside {
+  list-style-position: inside;
+}
+.symbol {
+  list-style-type: disc;
+}
+.decimal {
+  list-style-type: decimal;
+}
+.string {
+  list-style-type: "string";
+}
+.content::marker {
+  content: "content";
+}
+</style>
+<ol>
+  <li class="symbol"></li>
+  <li class="decimal"></li>
+  <li class="string"></li>
+  <li class="content"></li>
+</ol>
+<ol class="inside">
+  <li class="symbol"></li>
+  <li class="decimal"></li>
+  <li class="string"></li>
+  <li class="content"></li>
+</ol>
+<script src="/common/reftest-wait.js"></script>
+<script>
+"use strict";
+// Use a "load" event listener and requestAnimationFrame to ensure that
+// the markers will have been laid out.
+addEventListener("load", function() {
+  requestAnimationFrame(() => {
+    for (let list of document.querySelectorAll("ol")) {
+      list.classList.toggle("inside");
+    }
+    takeScreenshot();
+  });
+}, {once: true});
+</script>
+</html>