JSFiddle - React, Tailwind, and code Playground

HTML

<button class="button-default">Button text</button>

CSS

[class*="button-"] {
  display: inline-block;
  border-radius: 5vmin;
  text-align: center;
  padding: 5vmin 10vmin;
  font: 300 13.5vmin "Roboto",sans-serif;
  border: 0;
  outline: none;
  background-color: #ffefa2;
}