JSFiddle - React, Tailwind, and code Playground

HTML

<ul>
    <li>
        <button class="show-more">Show</button>
        <div>1</div>
        <div>2</div> <span>3</span>

        <div class="hidden">4</div>
        <div class="hidden">5</div>
    </li>
</ul>

CSS

.hidden{
    display: none;
}

JavaScript

$(".show-more").click(function (event) {
    event.preventDefault();
    $('~.hidden:first' ,this).slideToggle("fast");
});