JSFiddle - React, Tailwind, and code Playground

HTML

<a href="#" class="profile-link round"><img src="http://placekitten.com/200/200"/></a>
<p>Kattints a képre a kerekség kapcsolgatásához!</p>

CSS

.profile-link {
    display: block;
    width: 200px;
    height: 200px;
    overflow: hidden;
}
.round {
    border-radius: 100px;
}

JavaScript

$('a').on('click', function(e) {
    e.preventDefault();
    $(e.currentTarget).toggleClass('round');
}
);