JSFiddle - React, Tailwind, and code Playground

HTML

<h1>This is a test</h1>

CSS

@font-face {
  font-family: "Helvetica";
  src: url('http://spawnasite.co.uk/Helvetica-Condensed-Light-Light.ttf') format("truetype");
}

h1{
    font-family: "Helvetica", sans-serif;
}