JSFiddle - React, Tailwind, and code Playground

HTML

<div class="lhs flex-container-v">
    <header class="flex-fixed">Header</header>
    <div class="flex-fill list-container">
        <ul>
            <li>Item</li>
            <li>Item</li>
            <li>Item</li>
            <li>Item</li>
            <li>Item</li>
            <li>Item</li>
            <li>Item</li>
            <li>Item</li>
        </ul>
    </div>
    <footer class="flex-fixed">Footer</footer>
</div>

CSS

.flex-container-v {
  display: -webkit-flex;
  display: -moz-flex;
  display: -ms-flexbox;
  display: -ms-flex;
  display: flex;
  -webkit-flex-direction: column;
  -moz-flex-direction: column;
  -ms-flex-direction: column;
  flex-direction: column;
}
.flex-fill {
  -webkit-flex: 0 1 auto;
  -moz-flex: 0 1 auto;
  -ms-flex: 0 1 auto;
  flex: 0 1 auto;
}
.flex-fixed {
  -webkit-flex: 0 0 auto;
  -moz-flex: 0 0 auto;
  -ms-flex: 0 0 auto;
  flex: 0 0 auto;
}
.lhs {
  position: absolute;
  top: 8px;
  left: 8px;
  width: 300px;
  max-height: 200px;
  border: 1px solid red;
  overflow: hidden;
}
.list-container {
    overflow-y: scroll;
}