JSFiddle - React, Tailwind, and code Playground

HTML

<span>1</span>

<span>2</span>

<span>3</span>

CSS

span {display:inline-block; width:100px; height:100px; margin:20px;               border:5px solid black;}

span + span        {background-color:orange;}

span + span + span {background-color:blue;}