JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/foundation/5.5.1/css/foundation.min.css">
<div class="column large-6">
	<ul class="img-list">
  	<li>
    	<a href="#">
            <img src="https://www.ricoh.com/r_dc/r/r8/img/sample_08.jpg" />
      	<span class="text-content">
      		<span>Hello@!</span>
      	</span>
    	</a>
  </li>
  </ul>
</div>

CSS

ul.img-list {
  list-style-type: none;
  margin: 0;
  padding: 0;
  text-align: center;
}
 
ul.img-list li {
  display: inline-block;
  height: 100%;
  margin: 0 1em 1em 0;
  position: relative;
  width: 100%;
}
span.text-content {
  background: rgba(0,0,0,0.5);
  color: white;
  cursor: pointer;
  display: table;
  height: 150px;
  left: 0;
  position: absolute;
  top: 0;
  width: 150px;
}
 
span.text-content span {
  display: table-cell;
  text-align: center;
  vertical-align: middle;
}

span.text-content {
  background: rgba(0,0,0,0.5);
  color: white;
  cursor: pointer;
  display: table;
  height: 100%;
  left: 0;
  position: absolute;
  top: 0;
  width: 100%;
  opacity: 0;
  -webkit-transition: opacity 500ms;
  -moz-transition: opacity 500ms;
  -o-transition: opacity 500ms;
  transition: opacity 500ms;
}
 
ul.img-list li:hover span.text-content {
  opacity: 1;
}