cneter div with div postion way

by meetsonusharma

HTML

<div class="parent">

<div class="child">

</div>
</div>

CSS

.parent {
  width: 300px;
  height: 200px;
  border: 1px solid black;
}

.child {
  width: 200px;
  height: 100px;
  border: 1px solid red;
  position: relative;
  top: 50%;
  left: 50%;
  margin: -50px 0 0 -100px;
}