JSFiddle - React, Tailwind, and code Playground

HTML

<div class"a">
     <img class="2020" src="img/swatch/2020.jpg" >
     <img class="2021" src="img/swatch/2021.jpg" >
     <img class="2022" src="img/swatch/2022.jpg" >
     </div>

JavaScript

$('.a').children('img').children('.2021').css("padding", "5px");