chromium/third_party/blink/web_tests/printing/vertical-lr-expected.html

<!DOCTYPE html>
<script>
  if (window.testRunner)
      testRunner.setPrinting();
  if (window.internals)
      internals.settings.setShouldPrintBackgrounds(true);
</script>
<style>
  body { margin:20px; }
</style>
<p style="position:absolute; right:0; top:0; width:200px;">
  There should be a right-aligned blue box on the first page, and a
  right-aligned hotpink box on the second page.
</p>
<div style="width:600px; height:100px; background:blue;"></div>
<!-- Retain the inline-start margin in the test by setting the top margin to
     20px. Cancel out the block-start body margin (shouldn't be repeated on
     every page) in the test, by setting the left margin to -20px. -->
<div style="break-before:page; width:600px; height:100px; margin:20px 0 0 -20px; background:hotpink;"></div>