JSFiddle - React, Tailwind, and code Playground

HTML

<div class="images">
  <img src="https://placekitten.com/600/400">
  <img src="https://placekitten.com/600/400">
</div>

CSS

* {
  height: 100%;
}

img {
  display: block;
  height: auto;
  width: 100%;
}

.images {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: auto 0;
  padding: 0 200px;
}

@media screen and (max-width: 768px) {
  .images {
    flex-direction: column;
    padding: 0;
  }
}