JSFiddle - React, Tailwind, and code Playground

HTML

<a href="#">A Link!</a>
<div>Random element in-between</div>
<div class="feature">Click me?</div>

<a href="#">A Link!</a>
<div>Random element in-between</div>
<div class="feature">Click me?</div>

CSS

a.cool {
    color: #00ff00;
}

JavaScript

$('div.feature').click(function() {
    $(this).prevOne('a').addClass('cool');
    $(this).prev().css({"color": "red", "border": "2px solid red"});
});