JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
  <div class="elemento"></div>
  <div class="elemento"></div>
  <div class="elemento"></div>
</div>

CSS

.container {
  border:1px solid red;
  width: 300px;
  height:100px;
}

.elemento {
  width: 100px;
  height:100px;
  border:2px solid blue;
  box-sizing: border-box;
  float:left
}