JSFiddle - React, Tailwind, and code Playground

HTML

<script>
    function hideLink(element) {
        document.getElementById(element).style.display='block';
        document.getElementById('hidelink').style.display='none';
        return false;
    }
</script>
<a id="hidelink" href="#" onclick="hideLink('super')">
Раскрыть блок</a>

<div id="super">
Some text
</div>

CSS

#hidelink {
    margin:auto;
    font-weight:bold;
}
#super {
    display:none;
}