JSFiddle - React, Tailwind, and code Playground

HTML

<div>Test</div>

CSS

div:after {
    content:" - positive!";
    position: relative;
    opacity: 0;
    top: -20px;
    -webkit-transition: all 3s;
    transition: all 3s;
}
div:hover:after {
    opacity: 1;
    top: 0px;
}