JSFiddle - React, Tailwind, and code Playground

HTML

<div class=top>Top</div>
<div class=middle>Middle</div>
<div class=bottom>
  <div class=content><br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>Bottom<br>

  </div>
</div>

CSS

body, html {
  height: 100%;
  padding: 0;
  margin: 0;
}

div {
}

body {
  display: grid;  
}

.top {
  background: lightgreen;
  min-height: 33vh;
}

.middle {
  background: yellow;
  min-height: 33vh;
}

.bottom {
  background: lightblue;
  height: fit-content;
}
.content {
  min-height: 33vh;
}