JSFiddle - React, Tailwind, and code Playground

HTML

<a id="text" tabindex="0" href="javascript:void(0)"><b>Kontakt</b></a>
<div class="infobox-profile">
    
<a href="https://www.google.de/">link</a>

</div>

JavaScript

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

    $("#text").focusin(function() {
        $(".infobox-profile").show();
    }).focusout(function () {
        $(".infobox-profile").hide();
    });
});