JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
  <div class="wrapper">
    <div class="col left">
      <h3>Overskrift<h3>
    </div>
    <div class="col right">
      <h3>Overskrift<h3>
    </div>
    <div class="col">
      <h3>Overskrift<h3>
    </div>
 </div>
</div>

CSS

.container {
  height: auto;
  width: 100%;
  margin: 0;
}

.wrapper {
  width: 900px;
  background: #CCC;
  margin: 0 auto;
  height: 200px;
}

.col {
  box-sizing: border-box;
  width: 32%;
  margin:0 auto;
  background: red;
  padding:20px;
}

.left{float:left;}
.right{float:right;}