JSFiddle - React, Tailwind, and code Playground

HTML

<div class="hide">
 <div id="lightbox1">LB1</div>
 <div id="lightbox2">LB2</div>
 <div id="lightbox3">LB3</div>
 <div id="lightbox4">LB4</div>
 <div id="lightbox5">LB5</div>
</div>
<a href="#">CLICK ME</a>

JavaScript

function Shuffle(o) {
    for(var j, x, i = o.length; i; j = parseInt(Math.random() * i), x = o[--i], o[i] = o[j], o[j] = x);
    return o;
};

var array = $(".hide div").toArray(); // Add all divs within the hide div to an array
var randomArray = Shuffle(array); // Shuffle the array

$("a").click(function() {
    if (randomArray.length > 0)
        alert(randomArray.shift().innerHTML); // Show contents of div, as an example
    else
        alert("None left!");
    return false;
});