JSFiddle - React, Tailwind, and code Playground

HTML

<div class="stapel">
	<img src="http://placekitten.com/200/300" alt="Miau" class="unten">
	<img src="http://placekitten.com/400/400" alt="Mao" class="mitte">
	<img src="http://placekitten.com/300/200" alt="Maunz" class="oben">
	</div>

CSS

.stapel {
  width: 550px;
  height: 550px;
  background: antiquewhite;
  display: block;
  padding: 50px;
  margin: 20px;
}
.unten {
  z-index: 1;
}
.mitte {
  position: absolute;
  z-index: 42;
  top: 200px;
  left: 200px;
}
.oben {
  position: absolute;
  z-index:99;
  top: 100px;
  left: 120px;
}