JSFiddle - React, Tailwind, and code Playground

HTML

<div class="image-div">
    <img src="https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcRH7oGdODLKgm4gaTYHdWDPYLUASSrLYxW4-YDuaZz-iU8jx5_3jg" />
    <img class="hidden_img" src="http://i.stack.imgur.com/P1ELC.png" width="30" height="30" />
</div>

CSS

.image-div {
    position: relative;
    float:left;
    margin:5px;}

.image-div:hover .hidden_img
  {
  display: block;
  }

.image-div .hidden_img {
    position:absolute;
    top:50%;
    left:50%;
    display:none;
}