JSFiddle - React, Tailwind, and code Playground

by DJS Baker

HTML

<div id="nav">
    <div id="prev">PREV</div>
    <div id="next">NEXT</div>
</div>

<div id="nav_2">
    <!-- jQuery will create the buttons! -->
</div>

<div id="container">
    
    <div class="page">PAGE 1</div>
    <div class="page">PAGE 2</div>
    <div class="page">PAGE 3</div>
    <div class="page">PAGE 4</div>
    
</div>

CSS

*{margin:0;padding:0;}
#container{

    position:relative;
    margin:0 auto;
    width:500px;
    
}
.page{
    width:500px;
    height:100%;
    background:#aaa;
    margin-bottom:10px;
}

/**/

#nav{
position:fixed;
    top:20px;
    left:20px;
}
#nav_2{
position:fixed;
    top:55px;
    left:20px;
}

/* BUTTONS */
.btn, #prev, #next{
    cursor:pointer;
    background:#eee;
    height:18px;
    padding:5px;
    border:1px solid #888;
    border-radius:30px;
    float:left;
    margin:2px;
    text-align:center;
}
.btn:hover{
    background:#ccc;
}
.active{
    background:#cf5;
}

JavaScript

// SCROLL DOWN TO FIND THE CODE.



/*! Copyright (c) 2011 Brandon Aaron (http://brandonaaron.net)
 * Licensed under the MIT License (LICENSE.txt).
 *
 * Thanks to: http://adomas.org/javascript-mouse-wheel/ for some pointers.
 * Thanks to: Mathias Bank(http://www.mathias-bank.de) for a scope bug fix.
 * Thanks to: Seamus Leahy for adding deltaX and deltaY
 *
 * Version: 3.0.6
 *
 * Requires: 1.2.2+
 */

(function($) {

var types = ['DOMMouseScroll', 'mousewheel'];

if ($.event.fixHooks) {
    for ( var i=types.length; i; ) {
        $.event.fixHooks[ types[--i] ] = $.event.mouseHooks;
    }
}

$.event.special.mousewheel = {
    setup: function() {
        if ( this.addEventListener ) {
            for ( var i=types.length; i; ) {
                this.addEventListener( types[--i], handler, false );
            }
        } else {
            this.onmousewheel = handler;
        }
    },
    
    teardown: function() {
        if ( this.removeEventListener ) {
            for ( var i=types.length; i; ) {
                this.removeEventListener( types[--i], handler, false );
            }
        } else {
            this.onmousewheel = null;
        }
    }
};

$.fn.extend({
    mousewheel: function(fn) {
        return fn ? this.bind("mousewheel", fn) : this.trigger("mousewheel");
    },
    
    unmousewheel: function(fn) {
        return this.unbind("mousewheel", fn);
    }
});


function handler(event) {
    var orgEvent = event || window.event, args = [].slice.call( arguments, 1 ), delta = 0, returnValue = true, deltaX = 0, deltaY = 0;
    event = $.event.fix(orgEvent);
    event.type = "mousewheel";
    
    // Old school scrollwheel delta
    if ( orgEvent.wheelDelta ) { delta = orgEvent.wheelDelta/120; }
    if ( orgEvent.detail     ) { delta = -orgEvent.detail/3; }
    
    // New school multidimensional scroll (touchpads) deltas
    deltaY = delta;
    
    // Gecko
    if ( orgEvent.axis !== undefined && orgEvent.axis === orgEvent.HORIZONTAL_AXIS ) {
   ...