JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
  <div>Content 1</div>
  <div class="slide">
    Content 2
  </div>
</div>

CSS

.container {
  width: 100px;
  height: 100px;
  background: salmon;
  overflow: hidden;
  position: relative;
}
.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: lightgreen;
  transition: all 500ms ease;
  transform: translate(-100%);
}
.container:hover .slide {
  transform: translate(-0%);
}