JSFiddle - React, Tailwind, and code Playground

HTML

<a id="text">Kontakt</a>
<div class="infobox-profile">
    
<a href="https://www.google.de/" target="_blank">link</a>

</div>

CSS

#text {
    color: blue;
    cursor: pointer;
    font-weight: bold;
    text-decoration: underline;
}

JavaScript

$(function () {
    $(".infobox-profile").hide();

    $("#text").click(function() {
        $(".infobox-profile").toggle();
    });
});