JSFiddle - React, Tailwind, and code Playground

HTML

<div class="star-rating">
   <div class="off">&#9733</div>
   <div class="off">&#9733</div>
   <div class="off">&#9733</div>
   <div class="off">&#9733</div>
   <div class="off">&#9733</div>
</div>
<input type="input" name="rating" class="rating-input" />

JavaScript

var rating = document.getElementsByClassName('star-rating')[0];
var ratingInput = rating.nextSibling;
alert(ratingInput.className);