JSFiddle - React, Tailwind, and code Playground

HTML

<div id="blue1"></div>
<div id="blue2"></div>
<div id="blue3"></div>
<div id="blue4"></div>

CSS

html body div[id^="blue"] {background-color: blue}
#blue4 {background-color: red}


div {height: 50px; width: 50px}