JSFiddle - React, Tailwind, and code Playground

by Gabriele Petrioli

HTML

<div class="arrow up_arrow">UP</div>
<div class="content">
    <img src="http://lorempixel.com/400/300/cats/1" />
    <img src="http://lorempixel.com/400/300/cats/2" />
    <img src="http://lorempixel.com/400/300/cats/3" />
</div>
<div class="arrow down_arrow">DOWN</div>

CSS

.content{
    width:400px;
    height:300px;
    overflow:hidden;
    border:1px solid #999;
}
.content img{display:block;}
.arrow{
    display:inline-block;
    padding:5px 15px;
    background:#eee;
    border-radius:3px;
    margin:3px 0;
    cursor:pointer;
    border:1px solid #ddd;
}

JavaScript

var gallery = $('.content'),
    height = gallery.height();

$('.arrow').on('click', function(){
    var up = $(this).is('.up_arrow');
    
    if (up) {
        gallery.animate({'scrollTop': '-=' + height});
    } else {
        gallery.animate({'scrollTop': '+=' + height});        
    }
});