File: will-change-fixedpos-cb-005.html

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<!doctype html>
<meta charset="utf-8">
<title>CSS Test: will-change: backdrop-filter on an inline should generate a containing block for fixed positioned elements.</title>
<link rel="author" title="Philip Rogers" href="mailto:pdr@chromium.org">
<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=960953">
<link rel="help" href="https://drafts.csswg.org/css-will-change/#will-change">
<link rel="help" href="https://drafts.fxtf.org/filter-effects-2/#BackdropFilterProperty">
<link rel="match" href="will-change-fixedpos-cb-005-ref.html">
<style>
  .inline {
    margin-left: 100px;
    will-change: backdrop-filter;
  }
  .fixedpos {
    position: fixed;
    top: 0;
    left: 0;
    background: green;
    height: 100px;
    width: 100px;
  }
</style>
<span class="inline">
  <!-- "FAIL" should be hidden by the green box and should not be visible. -->
  FAIL
  <div class="fixedpos"></div>
</span>