scrollbar-gutter-scroll-into-view.html

<!doctype html>
<meta charset="utf-8">
<title>CSS Test: scrollIntoView with scrollbar gutter on root frame viewport</title>
<link rel="author" href="mailto:[email protected]">
<link rel="match" href="scrollbar-gutter-scroll-into-view-ref.html">
<link rel="help" href="https://drafts.csswg.org/css-overflow/#scrollbar-gutter-property">
<link rel="help" href="https://crbug.com/355460994">
<style>
  :root {
    scrollbar-gutter: stable both-edges;
    writing-mode: vertical-lr;
    overflow: hidden;
  }

  body {
    margin: 0;
  }

  #target {
    width: 100px;
    height: 100px;
    border: 4px solid black;
    position: absolute;
    left: 10px;
    top: 150vh;
    background-color: lightgreen;
  }
  #bg {
    background-color: khaki;
    width: 200vw;
    height: 400vh;
  }
</style>
<div id="bg"></div>
<div id="target"></div>
<script>
target.scrollIntoView({ inline: "start" });
</script>

chromium/third_party/blink/web_tests/external/wpt/css/css-scrollbars/scrollbar-gutter-scroll-into-view.html