Check position

by Andreu

HTML

<div class="hose-wall">
<div class="window">
  
</div>
</div>

CSS

.hose-wall{
  width: 100px;
  height: 100px;
  background-color: red;
  position: relative;
}
.window{
  width: 30px;
  height: 60px;
  position: absolute;
  background-color: blue;
  right: 0px;
}