JSFiddle - React, Tailwind, and code Playground

HTML

<a href="#" class="tooltip">
  <img src="http://placehold.it/200x200" />
  <span>Tooltip Text.</span>
</a>

CSS

a.tooltip span {
    position: absolute;
    top: 10px;
    left: 25px;
    width: 250px; 
    border: #000 1px solid;
    background: #F8F8F8;
    padding: 10px;
    z-index: 1000000;
    display: inline;
    opacity: 0;
    transition: 750ms all;
}
a.tooltip:hover span {
    outline: none;
    text-decoration: none;
    font-size: 70%;
    color: #000;

    opacity: 1;
}