JSFiddle - React, Tailwind, and code Playground

HTML

<a href="#first">First</a>
<a href="#second">Second</a>
<a href="#third">Third</a>

<div id="modal"></div>

CSS

a {
    display: block;
    width: 120px;
    text-align: center;
    color: #333;
    border: 1px solid #dcdcdc;
    border-radius: 5px;
    padding: 10px;
    margin: 5px;
    text-decoration: none;
}

#modal {
    position: absolute;
    text-align: center;
    width: 320px;
    border-radius: 5px;
    border: 1px solid #dcdcdc;
    box-shadow: 1px 1px 5px #000;
    left: 300px;
    top: 50px;
    padding: 50px 0;
}

JavaScript

window.addEventListener('hashchange', hashchange);

function hashchange(){ 
  var hash = location.hash;
  modal(hash);
}

function modal(text){
    $("#modal").text(text).show();
}