JSFiddle - React, Tailwind, and code Playground

HTML

<button id="arial">
  arial
</button>

<button id="tahoma">
  helvetica
</button>

CSS

#arial {
  font-family: airal;
  font-size: 1em;
  padding: 5px 10px;
}

#tahoma {
  font-family: Tahoma;
  font-size: 1em;
  padding: 5px 10px;
}