JSFiddle - React, Tailwind, and code Playground

HTML

<a href="#" class="col" data-desc="DESCRIPTION">LINK</a>

<div class="grafischewerktekst">SOME DIV</div>

CSS

.grafischewerktekst
{
    display:none
}

JavaScript

$('.col').on('mouseover',function()
{
$('.grafischewerktekst').text($(this).attr('data-desc')).fadeIn("slow");
});