JSFiddle - React, Tailwind, and code Playground

HTML

<div class="good">fruit</div>
<div class="bad">stone</div>
<div class="bad">sand</div>
<div class="good">water</div>
<div class="good">carrot</div>

JavaScript

var good = document.getElementsByClassName('good');
for(var i = 0; i < good.length; i++) {
	good[i].style.color = 'yellow';
}