JSFiddle - React, Tailwind, and code Playground

by samc

HTML

<div id="icon">W</div>

CSS

#icon {
    background: #34495e;
    font-size: 3em;
    width: 1.25em;
    height: 1.25em;
    line-height: 1.25;
    text-align: center;
    color: #fff;
}