JSFiddle - React, Tailwind, and code Playground

HTML

<div>
	<div id="left">
		left
	</div>
	<div id="right">
		right
	</div>
	<div id="center">
		center
	</div>
</div>

CSS

#left {
	float: left;
	width: 180px;
	background-color:#ff0000;
}
#right {
	float: right;
	width: 180px;
	background-color:#00FF00;
}
#center {
  background: yellow;
  overflow: hidden;
}