JSFiddle - React, Tailwind, and code Playground

HTML

<div class="hotqcontent">
    <span class="nested">
        Show this
    </span>
</div>

CSS

.hotqcontent {
    height: 100px;
    width: 100px;
    border: 1px solid #f00;
}

.hotqcontent span.nested {
    display: none;
}

.hotqcontent:hover .nested {
    display: block;    
}