Blitz - WPT: long_scroll

wpt / css / cssom-view / long_scroll_composited.html

/css/cssom-view/long_scroll_composited.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>Long scrolling should work properly</title>
<link rel="author" href="mailto:masonf@chromium.org">
<link rel="help" href="https://www.w3.org/TR/cssom-view/#scrolling">
<link rel="match" href="long_scroll_composited-ref.html">

<style>
.post {
  height: 1000px;
  width: 300px;
  border: 1px solid black;

}
.scroller {
  overflow-y: scroll;
  width: 500px;
  height: 500px;
  will-change: transform;
  scrollbar-width: none;
}
::-webkit-scrollbar {
  display: none;
}
</style>

<p>The number 7 should be visible in the scrolled window below.</p>

<div id="scroller" class="scroller">
  <div style="position: relative;">
    <div style="position: relative;">
      <div class="post">0</div>
      <div class="post">1</div>
      <div class="post">2</div>
      <div class="post">3</div>
      <div class="post">4</div>
      <div class="post">5</div>
      <div class="post">6</div>
      <div class="post">7</div>
      <div class="post">8</div>
      <div class="post">9</div>
    </div>
  </div>
</div>

<script>
onload = function() {
  scroller=document.getElementById("scroller");
  scroller.scrollTop = 6800;
};
</script>

/css/cssom-view/long_scroll_composited-ref.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>Long scrolling should work properly</title>
<link rel="author" href="mailto:masonf@chromium.org">



<style>
.post {
  height: 1000px;
  width: 300px;
  border: 1px solid black;

}
.before {
  height: 213px;
  border-top: 0;
}
.scroller {
  overflow-y: scroll;
  width: 500px;
  height: 500px;
  will-change: transform;
  scrollbar-width: none;
}
::-webkit-scrollbar {
  display: none;
}
</style>

<p>The number 7 should be visible in the scrolled window below.</p>

<div id="scroller" class="scroller">
  <div style="position: relative;">
    <div style="position: relative;">
      <div class="post before"></div>
      <div class="post">7</div>
    </div>
  </div>
</div>