<div class="absolute-element"></div>
<div class="parent">
  <div class="absolute-element2"></div>
</div>

<!-- Read the full article and tutorial on webexpe.com  -->

.absolute-element {
  position: absolute;
  top: 50px;
  left: 50px;
  
  width: 50px;
  height: 50px;
  background: blue;
}

.absolute-element2 {
  position: absolute;
  top: 50px;
  left: 100px;
  
  width: 50px;
  height: 50px;
  background: yellow;
}

.parent {
  position: relative; 
  
  background: orangered;
  width: 200px;
  height: 200px;
  margin-top: 150px;
}