JSFiddle - React, Tailwind, and code Playground

by fxi

HTML

<html>
  <body>
    <div class="parent">
       Text
      <p class="child">Text</p>
    </div>
  </body>
</html>

CSS

html {
  font-size: 16px;
}

.parent {
  font-size: 2em;
}

.child {
  font-size: 2rem;
}