JSFiddle - React, Tailwind, and code Playground

HTML

<div class="content">
    <div>Some content here</div>
     <div class="box">1</div>
    <div class="box"> 2</div>
    <div class="box">3</div>
</div>
<div class="content">
    <div class="box">1</div>
    <div class="box">2</div>
    <div class="box">3</div>
</div>
 
<div class="content">
  <div class="box">1</div>
    <div class="box">2</div>
    <div class="box">3</div>
</div>

CSS

div.box{ float:left; width:120px; margin:120px;}
div.box:nth-child(3){background-color:green;}