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<!DOCTYPE html>
<html reftest-async-scroll
      reftest-displayport-x="0" reftest-displayport-y="0"
      reftest-displayport-w="800" reftest-displayport-h="2000"
      reftest-async-scroll-x="0" reftest-async-scroll-y="200">

<title>position:fixed with scrolled clip should prerender everything and correctly move the clip</title>

<style>

body {
  margin: 0;
  height: 4000px;
}

.blueBox {
  margin: 10px;
  width: 200px;
  height: 200px;
  box-sizing: border-box;
  border: 1px solid blue;
}

.opacity {
  opacity: 0.8;
}

.absoluteClip {
  position: absolute;
  top: 300px;
  left: 100px;
  width: 200px;
  height: 200px;
  clip: rect(auto auto auto auto);
}

.fixed {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: linear-gradient(lime 300px, black 0);
}

.absoluteCyanBox {
  position: absolute;
  top: 200px;
  left: 400px;
  width: 200px;
  height: 200px;
  box-sizing: border-box;
  border: 1px solid cyan;
}


</style>

<div class="blueBox" reftest-assigned-layer="page-background"></div>

<div class="absoluteClip">
  <div class="opacity">
    <div class="fixed"></div>
  </div>
</div>

<div class="absoluteCyanBox" reftest-assigned-layer="page-background"></div>