css/css-scrollbars/scrollbar-width-paint-006.html

<!doctype html>
<html class="reftest-wait">
<title>CSS Scrollbars: paint test when updating scrollbar-width twice, with scrolling content</title>
<link rel="author" title="Luke Warlow" href="mailto:luke@warlow.dev">
<link rel="match" href="scrollbar-width-paint-006-ref.html">
<link rel="mismatch" href="scrollbar-width-paint-006-mis-ref.html">
<link rel="help" href="https://www.w3.org/TR/css-scrollbars-1/" />
<script src="/common/reftest-wait.js"></script>
<style>
  body {
    display: flex;
    flex-wrap: wrap;
  }

  .container {
    scrollbar-gutter: stable;
    overflow: auto;
    flex: 0 0;
    height: 200px;
    min-width: 200px;
    margin: 1px;
    padding: 0px;
    border: none;
    background: deepskyblue;
  }

  .content {
    height: 300px;
    width: 300px;
  }

  .container.auto {
    scrollbar-width: auto;
  }

  .container.thin {
    scrollbar-width: thin;
  }

  .container.none {
    scrollbar-width: none;
  }

  .content.plain {
    background: red;
  }

  .content.gradient {
    background: linear-gradient(135deg, red, blue);
  }
</style>
<div id="one" class="container auto">
  <div class="content plain"></div>
</div>
<div id="two" class="container thin">
  <div class="content plain"></div>
</div>
<div id="three" class="container none">
  <div class="content plain"></div>
</div>
<div id="four" class="container auto">
  <div class="content gradient"></div>
</div>
<div id="five" class="container thin">
  <div class="content gradient"></div>
</div>
<div id="six" class="container none">
  <div class="content gradient"></div>
</div>
<script>
requestAnimationFrame(() => requestAnimationFrame(() => {
  document.getElementById('one').style.scrollbarWidth = 'thin';
  document.getElementById('two').style.scrollbarWidth = 'auto';
  document.getElementById('three').style.scrollbarWidth = 'auto';
  document.getElementById('four').style.scrollbarWidth = 'none';
  document.getElementById('five').style.scrollbarWidth = 'none';
  document.getElementById('six').style.scrollbarWidth = 'thin';

  requestAnimationFrame(() => requestAnimationFrame(() => {
    document.getElementById('one').style.scrollbarWidth = 'none';
    document.getElementById('two').style.scrollbarWidth = 'none';
    document.getElementById('three').style.scrollbarWidth = 'thin';
    document.getElementById('four').style.scrollbarWidth = 'thin';
    document.getElementById('five').style.scrollbarWidth = 'auto';
    document.getElementById('six').style.scrollbarWidth = 'auto';

    takeScreenshot();
  }));
}));
</script>