JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
  <div class="a">
  </div>
    <div class="b">
  </div>
    <div class="c">
  </div>
</div>

CSS

.container {
  background-color: black;
  display: flex;
  flex-direction: column;
  height: 1000px;
}

.child {
  width: 100%;
}

.a {
  background-color: #FF9800;
  height: 100px;
}

.b {
  background-color: #FFEB3B;
  flex-grow: 1;
}

.c {
  background-color: #FF9800;
  height: 100px;
}