JSFiddle - React, Tailwind, and code Playground

HTML

<span aria-label="This is information">This is a test</span>

CSS

span:hover {
  position: relative;
}

span[aria-label]:hover:after {
  content: attr(aria-label);
  padding: 4px 8px;
  position: absolute;
  left: 0;
  top: 100%;
  white-space: nowrap;
  z-index: 20px;
  background:red;
}