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<!DOCTYPE html>
<html class=reftest-wait>
<title>View transitions: snapshot containing block includes scrollbar gutters</title>
<link rel="help" href="https://github.com/WICG/view-transitions">
<link rel="author" href="mailto:bokan@chromium.org">
<link rel="match" href="snapshot-containing-block-includes-scrollbar-gutter-ref.html">
<meta name="fuzzy" content="snapshot-containing-block-includes-scrollbar-gutter-ref.html:0-20;0-100">
<script src="/common/reftest-wait.js"></script>
<style>
  :root {
    scrollbar-gutter: stable both-edges;
    /* unset so ::view-transition is visible. */
    view-transition-name: none;
  }
  ::view-transition {
    background-color: palegreen;
  }
  #target {
    position: absolute;
    top: 100px;
    left: 0px;
    width: 200px;
    height: 200px;
    background-color: limegreen;
    view-transition-name: target;
  }
  ::view-transition-group(target) {
    animation-duration: 300s;
  }
</style>
<!--
  This box should be a scrollbar's width from the left edge and
  exactly aligned with the light green background.
-->
<div id="target">
</div>
<script>
  failIfNot(document.startViewTransition,
      "Missing document.startViewTransition");

  async function runTest() {
    let transition = document.startViewTransition();
    await transition.ready;
    takeScreenshot();
  }

  onload = () => requestAnimationFrame(() => requestAnimationFrame(runTest));
</script>