JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css">
<div>
    <i class="fa fa-minus"></i>
</div>

CSS

div {
    background-color:lightgray;
    height: 50px;
    line-height: 50px;
    font-size: 19px;
}