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<!DOCTYPE html>
<html class=reftest-wait>
<title>View transitions: massive element on top of viewport partially onscreen (old content)</title>
<link rel="help" href="https://github.com/WICG/view-transitions">
<link rel="author" href="mailto:khushalsagar@chromium.org">
<link rel="match" href="massive-element-left-of-viewport-partially-onscreen-ref.html">
<meta name="fuzzy" content="massive-element-left-of-viewport-partially-onscreen-ref.html:maxDifference=0-3;totalPixels=0-330">

<script src="/common/reftest-wait.js"></script>
<style>
:root {
  writing-mode: vertical-lr;
}

.target {
  inline-size: 100px;
  block-size: 40000px;
  view-transition-name: target;
}

.top {
  inline-size: 100%;
  block-size: 100px;
  background: lightblue;
}

.middle {
  inline-size: 100%;
  block-size: 39800px;
  background: green;
}

.bottom {
  inline-size: 100%;
  block-size: 100px;
  background: blue;
}

.hidden {
  contain: paint;
  inline-size: 10px;
  block-size: 10px;
  background: grey;
  view-transition-name: hidden;
}

html::view-transition-group(hidden) { animation-duration: 300s; }
html::view-transition-image-pair(hidden) { animation: unset; opacity: 0; }

html::view-transition-old(*), html::view-transition-new(*) {
  object-fit: none;
}

html::view-transition-old(target) { animation: unset; opacity: 1; }
html::view-transition-new(target) { animation: unset; opacity: 0; }

</style>

<div class="target">
  <div class="top">This text is at the top of the box</div>
  <div class="middle">This text is in the middle of the box</div>
  <div id="scrollblue" class="bottom">This text is at the bottom of the box</div>
</div>
<div id=hidden class=hidden></div>

<script>
failIfNot(document.startViewTransition, "Missing document.startViewTransition");

async function runTest() {
  scrollblue.scrollIntoView();

  document.startViewTransition(() => {
    requestAnimationFrame(() => requestAnimationFrame(() =>
      requestAnimationFrame(() => requestAnimationFrame(takeScreenshot))
    ));
  });
}
onload = () => requestAnimationFrame(() => requestAnimationFrame(runTest));
</script>