JSFiddle - React, Tailwind, and code Playground

HTML

<div id="parent">
    <div> A boring text node</div>
    <div class="hovernode"> A hidden node</div>
</div>

CSS

.hovernode{
    visibility:hidden;
    
}
//Apply this style to any children of #parent when it receives a hover event.
#parent:hover *{
    visibility:visible; !important
}