JSFiddle - React, Tailwind, and code Playground

HTML

<div>Patrick</div>

<div>Something with Patrick</div>

<div> patrick lowercase </div>

<div> 
    <span class="abc"> Have you met Patrick?</span>
</div>

CSS

.name {
    border: 1px solid #f00;   
}

JavaScript

$('*').filter(function() {
    return $.trim($(this).text()).toLowerCase() == 'patrick';
}).addClass('name');