JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<link rel="stylesheet" href="http://netdna.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css">
<script src="http://netdna.bootstrapcdn.com/bootstrap/3.3.0/js/bootstrap.min.js"></script>
<div class="row">
    <div class="col-md-12">
        <ul class="thumbnails">
            <li><div class="red"></div></li>
            <li><div class="red"></div></li>
            <li><div class="red"></div></li>
        </ul>
    </div>
</div>
<div class="row">
    <div class="col-md-12">
        <ul class="thumbnails">
            <li><div class="blue"></div></li>
            <li><div class="blue"></div></li>
            <li><div class="blue"></div></li>
        </ul>
    </div>
</div>
<div class="row">
    <div class="col-md-12">
        <ul class="thumbnails">
            <li><div class="green"></div></li>
            <li><div class="green"></div></li>
            <li><div class="green"></div></li>
        </ul>
    </div>
</div>

<div id="loadMore">Load more</div>
<div id="showLess">Show less</div>

CSS

.thumbnails .red {
    background-color: red;
    height: 20px;
    width: 20px;
    text-decoration: none;
}

.thumbnails .blue {
    background-color: blue;
    height: 20px;
    width: 20px;
}

.thumbnails .green {
    background-color: green;
    height: 20px;
    width: 20px;
}

.thumbnails {
    list-style-type: none;
}

.thumbnails li {
    margin-bottom: 20px;
}

JavaScript

var totalCount;
var currentCount;

$(document).ready(function () {
    totalCount  = $('.thumbnails li').size();
    currentCount = 3;
    adjustLiShown();
    $('#loadMore').click(function () {
       currentCount += 3;
       adjustLiShown()
    });
    $('#showLess').click(function () {
       currentCount -= 3;
       adjustLiShown()
    });
});

function adjustLiShown() {
    $('.thumbnails li').hide().filter(':lt(' + currentCount + ')').show();
    $('#loadMore').toggle(currentCount < totalCount);
    $('#showLess').toggle(currentCount > 3);
}