Ragnar Lodbrok

pyrokinesis

 .box {

 position: relative;

 width: 100px;

 height: 100px;

 background: url(...);

 }

 .box-2 {

 position: absolute;

 display: none;

 left: 50%;

 height: 50%;

 transform: translate(-50%, -50;

 width:12px;

 height:12px;

 background: url(...);

 background-size: 100% 100%;

 }

 .box-2:hover {

 display: block;

 }

 

<div class="box">

 <div class="box-2"></div>

 </div>