JSFiddle - React, Tailwind, and code Playground

HTML

<div class="button" data-target="#text" data-shown-text="Hide" data-hidden-text="Show">Hide</div>

<div id="text"> I want to hide this by pressing the button above </div>

CSS

.button {
    display: block;
    height: 20px;
    width: 100px;
    background: lightgreen;
    text-align: center;
    padding: 5px;
    font: 15px Tahoma;
    border: 1px solid black;
    text-decoration: none;
    list-style:none;
    margin: 10px 0px 10px 0px;
}
#showhide {
    display: none;
}

JavaScript

var button = document.querySelector('.button');
button.addEventListener('click', function(event) {
    var target = document.querySelector(button.getAttribute('data-target'));
    if (target.style.display == "none") {
        target.style.display = "block";
        button.innerHTML = button.getAttribute('data-shown-text');
    } else {
        target.style.display = "none";
        button.innerHTML = button.getAttribute('data-hidden-text');
    }
});