Examples

by R

HTML

<!-- Learn about this code on MDN: https://developer.mozilla.org/en-US/docs/Web/CSS/text-orientation -->

<p>Lorem ipsum dolet semper quisquam.</p>
<th class="days mon" id="Monday">Monday</th>

CSS

p,
th {
  writing-mode: vertical-rl;
  text-orientation: upright;
}