JSFiddle - React, Tailwind, and code Playground

by Mike Jacobson

HTML

<div class="container">
  <div class="footer">
    Footer!
  </div>

  <div class="scrollable">
    <div class="item">1</div>
    <div class="item">2</div>
    <div class="item">3</div>
    <div class="item">4</div>
    <div class="item">5</div>
    <div class="out">OUT</div>
  </div>
  
</div>

CSS

.scrollable {
  background-color: #eee;
  height: 200px;
  overflow-y: auto;
  position: relative;
}

.item {
  border: 1px solid red;
  height: 40px;
}

.out {
  background-color: blue;
  position: absolute;
  bottom: -20px;
  height: 50px;
  width: 150px;
  z-index: 5;
}

.container {
  position: relative;
}

.footer {
  position: absolute;
  bottom: -40px;
  background-color: #aaa;
  height: 20px;
  padding: 10px;
  z-index: 1;
}