JSFiddle - React, Tailwind, and code Playground

HTML

<div id="one">
  </div>
  <div id="two">
  </div>
  <div id="three">
  </div>

CSS

#one{
    background-color:red;
    width:50px;
    height:50px;  

     }

    #two{background-color:blue;
    width:50px;
    height:50px; 
     }

    #one, #two{display:inline-block;}

    #three{background-color:green;
    width:50px;
    height:50px;
    margin-top:-60px;
    margin-left: -5px;
     }