JSFiddle - React, Tailwind, and code Playground

HTML

<td id="mytd"> 
    <p> aaaa </p>
    <p> bbbbb </p>
    <p id="myp"> cccc </p> 
 </td>

JavaScript

var p = document.getElementById("myp");
p.style.background = "#000";
p.style.color= "#FFF";