JSFiddle - React, Tailwind, and code Playground

HTML

<html>
  <body>
    <h1>
      <button type="submit" class="btn_submit">
        <img src="http://www.smartwebby.com/imgs/tutorials/fireworks/website-design/submit-button.jpg" />
      </button>
    </h1>
  </body>
</html>

CSS

.btn_submit{
  border:none;
  background:none;
}