JSFiddle - React, Tailwind, and code Playground

HTML

<div class="left">
  asdf
</div>
<div class="right">
  right
</div>
<div class="center">
  content
</div>

CSS

*{
  margin:0;
  padding:0;
}

.left {
  width:200px;
  background-color: red;
  position:absolute;
  left:0;
}

.center {
  background-color: green;
  overflow: hidden;
  margin:0 200px;
}

.right {
  width:200px;
  background-color: yellow;
  position:absolute;
  right:0;
}