JSFiddle - React, Tailwind, and code Playground

HTML

<p>
  C
  <span class="__">
    <span>k</span>
    <span>n</span>
  </span>
</p>

CSS

p {
  text-align: center;
  margin-top: 3rem;
}

.__ {
  display: inline-flex;
  flex-direction: column;
  transform: translateY(-25%);
}