File: position-sticky-bottom-007.html

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<!DOCTYPE html>
<title>CSS Position Test: sticky element with bottom offset</title>
<link rel="author" title="Oriol Brufau" href="obrufau@igalia.com">
<link rel="help" href="https://drafts.csswg.org/css-position/#stickypos-insets">
<link rel="match" href="../../reference/ref-filled-green-100px-square.xht">
<meta name="assert" content="
  When the scroll container is scrolled to the top, then #sticky is visible.
  If we scroll 100px down, then #sticky should update its sticky offsets
  to still be visible.
">

<style>
#scroll-container {
  overflow: hidden;
  width: 100px;
  height: 100px;
  background: red;
}
#sticky {
  position: sticky;
  bottom: 0;
  height: 100px;
  background: green;
}
</style>

<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>

<div id="scroll-container">
  <div style="height: 500px"></div>
  <div id="sticky"></div>
</div>

<script>
scroller.scrollTop = 100;
</script>