JSFiddle - React, Tailwind, and code Playground

HTML

<div id="wrapper">
    <div id="c1">con1</div>
    <div id="c2">con2</div>
</div>

CSS

#wrapper{
  display:flex;
  justify-content:space-between;
  background:red;
}


#c1{
   background:blue;
}


#c2{
    background:green;
}