Absolute in absolute

HTML

<h1>
IA SI MUNCESTE /shrug
</h1>

CSS

.pos-relative {
  border: 5px solid red;
  position:relative;
  margin: 20px;
  min-height: 300px;
}

.pos-abs1 {
  position:absolute;
  left: 0;
  top: 0;
  width: 200px;
  height: 200px;
  background-color: blue;
}

.pos-abs2 {
  position:absolute;
  right: 0;
  bottom: 0;
  width: 100px;
  height: 100px;
  background-color: yellow;
}