JSFiddle - React, Tailwind, and code Playground

by Alexander Pankov

HTML

<h2>We have cows on our farm</h2>

CSS

span { color: red}

JavaScript

var str1 = "cows"
var re = new RegExp(str1, "g");

$("h2:contains('cow')").html(function(_, html) {
   return  html.replace(re, '<span class="smallcaps">$1</span>')
});