JSFiddle - React, Tailwind, and code Playground

HTML

<a class="fragment" href="#">
<span id='close' onclick='this.parentNode.parentNode.parentNode.removeChild(this.parentNode.parentNode); return false;'>x</span>
  <div class="content">
    // I WANT TO PUT MY TEXT HERE
  </div>
        
    </a>

JavaScript

function showPopup(data) {
    var elem = document.getElementsByClassName('content');
    elem[0].innerHTML = data;
}

showPopup('asdf');