chromium/third_party/blink/web_tests/external/wpt/css/css-overflow/scrollbar-gutter-dynamic-004.html

<!doctype html>
<html class="reftest-wait">
<meta charset="utf-8">
<title>CSS Overflow: scrollbar-gutter changing dynamically on the root element</title>
<link rel="author" href="mailto:[email protected]" title="Emilio Cobos Álvarez">
<link rel="author" href="https://mozilla.org" title="Mozilla">
<link rel="help" href="https://drafts.csswg.org/css-overflow-4/#scrollbar-gutter-property">
<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1874093">
<link rel="match" href="scrollbar-gutter-dynamic-004-ref.html">
<style>
:root {
  scrollbar-gutter: stable both-edges;
}
p {
  background-color: purple;
  color: white;
}
</style>
<p>Should not have space around me in the inline axis.</p>
<script>
  document.documentElement.getBoundingClientRect();
  document.addEventListener("TestRendered", function() {
    document.documentElement.style.scrollbarGutter = "initial";
    document.documentElement.className = "";
  });
</script>