<p>This is text that needs to be read from top to bottom, and from right to left:</p>

<p class="vertical-rl">This is text that needs to be read from top to bottom, and from right to left.</p>

p {
  font-family: Georgia, serif;
  font-size: 18px;
}

.vertical-rl {
  writing-mode: vertical-rl;
  color: #0074d9;
  display: inline-block;
}