JSFiddle - React, Tailwind, and code Playground
HTML
<ol class="slds-progress__list" id="olid"> <li class="slds-progress__item"> 123 </li> <li class="slds-progress__item"> 345 </li> </ol>
JavaScript
$(function() {
$('#olid li').click(function() {
$(this).addClass("slds-is-active");
});
})