JSFiddle - React, Tailwind, and code Playground

HTML

<ul>
    <li>
        some text
        <a href="hullballoo.com" class="add">+</a>
    </li>
</ul>

CSS

ul li a.add { display:none; background:url(localhost:8080/images/_app/settings/add-item.png) no-repeat top left;}


ul li:hover a {font-size: 16px; display:block; }

ul li a:hover {font-size: 16px; display:block;}