JSFiddle - React, Tailwind, and code Playground

HTML

<div id="demo" class="demo" style="background-color:yellow !important;"></div>
<div id="hola" class="hola"  ></div>

CSS

div { height: 100px; width: 100px; }

div { background-color: green !important; }
.demo{    background-color:red !important; }
#demo{    background-color:pink !important;}
 
div { background-color: green !important; }
.hola{    background-color:red !important; }
#hola{    background-color:pink !important;}