slider-horizontal-to-vertical.html | Explore in Territory

<!DOCTYPE html>
<style>
  .horizontal { writing-mode: horizontal-tb }
  .vertical { writing-mode: vertical-lr }
</style>
<p>You should see a vertical slider with a matching thumb below.</p>
<input id="range" type="range" class="horizontal">
<script>
  document.body.offsetTop;
  range.className = "vertical";
</script>

chromium/third_party/blink/web_tests/fast/forms/range/slider-horizontal-to-vertical.html