layout/reftests/async-scrolling/position-sticky-in-checkerboard-land-1.html


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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="2500">

<title>position:sticky item that's still visible while the rest of the scrollframe contents are checkerboarded</title>

<style>
html {
  scrollbar-width: none;
}

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

#sticky_container {
  margin-top: 100px;
  height: 3000px;
  background-image: linear-gradient(green, blue);
}

#sticky {
  position: sticky;
  top: 0;
  height: 100px;
  background-color: green;
}

</style>

<div id="sticky_container">
  <div id="sticky"></div>
</div>