JSFiddle - React, Tailwind, and code Playground

HTML

<div class="cl-first">
  <img src="http://dummyimage.com/120">
</div>
<div class="cl-last">
  <img src="http://dummyimage.com/100x300">
</div>

CSS

.cl-first {
  display: flex;
  justify-content: center;
  width: 200px;
  height: 100px;
  background-color: yellow;
}
.cl-last {
  display: flex;
  justify-content: center;
  width: 100px;
  height: 200px;
  background-color: cyan;
}
img {
  object-fit: contain;
}