css/css-break/block-001-wm-vrl-print.html

<!DOCTYPE html>
<link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
<link rel="help" href="https://www.w3.org/TR/css-break-3/">
<link rel="match" href="block-001-wm-vrl-ref.html">
<meta name="flags" content="paged">
<meta name="fuzzy" content="maxDifference=0-60;totalPixels=0-200">
<html>
<style>
@page {
  size: 5in 3in;
  margin: 0.5in;
}

:root {
  print-color-adjust: exact;
}

html,body {
  color:black; background-color:white; font:20px/1 monospace; padding:0; margin:0;
  writing-mode: vertical-rl;
}
html { block-size: 40vw; }

.b {
  inline-size: 50vh;
  block-size: 210vw;
  box-sizing: border-box;
  border: 5px solid black;
  border-block-start-color: blue;
  border-inline-start-color: lime;
  margin-inline-start: 20px;
}
</style>
<body>
  <div class="b"></div>
</body>
</html>