JSFiddle - React, Tailwind, and code Playground

HTML

<div class="buttons">
<button type="submit" name="submit_order" id="imageButton" class="button"></button>
</div>

CSS

#imageButton {
    background-image: url(http://placehold.it/350x150);
    width: 350px;
    height: 150px;
    background-size: 350px 150px;
    border-width: 0;
}