Bootstrap snippet and html example. bs4 Horizontal timeline

This html snippet was created to help web designers, web developers, front-end and back-end developer save time. Use it for free in your project and build your app faster, You can also download the HTML, CSS, and JS code.
Tags: timeline,bs4,scroll,horizontal

HTML code

This is the html code used to create this bootstrap snippet, You can copy and paste the following html code inside a page with bootstrap 4.1.1 included, to get the result that you can see in the preview selection

<div class="container">
<div class="row">
    <div class="col-lg-12">
        <div class="card">
            <div class="body">
                <div class="cd-horizontal-timeline loaded">
                    <div class="timeline">
                        <div class="events-wrapper">
                            <div class="events" style="width: 1800px;">
                                <ol>
                                    <li><a href="#0" data-date="16/01/2017" class="older-event" style="left: 120px;">16 Jan</a></li>
                                    <li><a href="#0" data-date="28/02/2017" style="left: 300px;" class="older-event">28 Feb</a></li>
                                    <li><a href="#0" data-date="20/04/2017" style="left: 480px;" class="selected">20 Mar</a></li>
                                    <li><a href="#0" data-date="20/05/2017" style="left: 600px;">20 May</a></li>
                                    <li><a href="#0" data-date="09/07/2017" style="left: 780px;">09 Jul</a></li>
                                    <li><a href="#0" data-date="30/08/2017" style="left: 960px;">30 Aug</a></li>
                                    <li><a href="#0" data-date="15/09/2017" style="left: 1020px;">15 Sep</a></li>
                                    <li><a href="#0" data-date="01/11/2017" style="left: 1200px;">01 Nov</a></li>
                                    <li><a href="#0" data-date="10/12/2017" style="left: 1380px;">10 Dec</a></li>
                                    <li><a href="#0" data-date="19/01/2018" style="left: 1500px;">29 Jan</a></li>
                                    <li><a href="#0" data-date="03/03/2018" style="left: 1680px;">3 Mar</a></li>
                                </ol>
                                <span class="filling-line" aria-hidden="true" style="transform: scaleX(0.281506);"></span>
                            </div>
                            <!-- .events -->
                        </div>
                        <!-- .events-wrapper -->
                        <ul class="cd-timeline-navigation">
                            <li><a href="#0" class="prev inactive">Prev</a></li>
                            <li><a href="#0" class="next">Next</a></li>
                        </ul>
                        <!-- .cd-timeline-navigation -->
                    </div>
                    <!-- .timeline -->
                    <div class="events-content" style="height: 225px;">
                        <ol>
                            <li class="" data-date="16/01/2017">
                                <h4>
                                            <img class="rounded float-left m-r-15" width="40" alt="user" src="https://bootdey.com/img/Content/avatar/avatar1.png"> Horizontal Timeline<br>
                                            <small>January 16th, 2017</small>
                                        </h4>
                                <hr>
                                <p>It is a long established fact that a reader will be distracted by the readable content of a page when looking at its layout. The point of using Lorem Ipsum is that it has a more-or-less normal distribution of letters, as opposed to using 'Content here, content here', making it look like readable English. Many desktop publishing packages and web page editors infancy.
                                    <br>
                                    <button class="btn btn-primary btn-round">Read more</button>
                                </p>
                            </li>
                            <li data-date="28/02/2017" class="">
                                <h4>
                                            <img class="rounded float-left m-r-15" width="40" alt="user" src="https://bootdey.com/img/Content/avatar/avatar2.png"> Horizontal Timeline<br>
                                            <small>Feb 28th, 2017</small>
                                        </h4>
                                <hr>
                                <p>It is a long established fact that a reader will be distracted by the readable content of a page when looking at its layout. The point of using Lorem Ipsum is that it has a more-or-less normal distribution of letters, as opposed to using 'Content here, content here', making it look like readable English. Many desktop publishing packages and web page editors infancy.
                                    <br>
                                    <button class="btn btn-primary btn-round">Read more</button>
                                </p>
                            </li>
                            <li data-date="20/04/2017" class="selected">
                                <h4>
                                            <img class="rounded float-left m-r-15" width="40" alt="user" src="https://bootdey.com/img/Content/avatar/avatar3.png"> Horizontal Timeline<br>
                                            <small>March 20th, 2017</small>
                                        </h4>
                                <hr>
                                <p>It is a long established fact that a reader will be distracted by the readable content of a page when looking at its layout. The point of using Lorem Ipsum is that it has a more-or-less normal distribution of letters, as opposed to using 'Content here, content here', making it look like readable English. Many desktop publishing packages and web page editors infancy.
                                    <br>
                                    <button class="btn btn-primary btn-round">Read more</button>
                                </p>
                            </li>
                            <li data-date="20/05/2017">
                                <h4>
                                            <img class="rounded float-left m-r-15" width="40" alt="user" src="https://bootdey.com/img/Content/avatar/avatar4.png"> Horizontal Timeline<br>
                                            <small>May 20th, 2017</small>
                                        </h4>
                                <hr>
                                <p>It is a long established fact that a reader will be distracted by the readable content of a page when looking at its layout. The point of using Lorem Ipsum is that it has a more-or-less normal distribution of letters, as opposed to using 'Content here, content here', making it look like readable English. Many desktop publishing packages and web page editors infancy.
                                    <br>
                                    <button class="btn btn-primary btn-round">Read more</button>
                                </p>
                            </li>
                            <li data-date="09/07/2017">
                                <h4>
                                            <img class="rounded float-left m-r-15" width="40" alt="user" src="https://bootdey.com/img/Content/avatar/avatar1.png"> Horizontal Timeline<br>
                                            <small>July 9th, 2017</small>
                                        </h4>
                                <hr>
                                <p>It is a long established fact that a reader will be distracted by the readable content of a page when looking at its layout. The point of using Lorem Ipsum is that it has a more-or-less normal distribution of letters, as opposed to using 'Content here, content here', making it look like readable English. Many desktop publishing packages and web page editors infancy.
                                    <br>
                                    <button class="btn btn-primary btn-round">Read more</button>
                                </p>
                            </li>
                            <li data-date="30/08/2017">
                                <h4>
                                            <img class="rounded float-left m-r-15" width="40" alt="user" src="https://bootdey.com/img/Content/avatar/avatar2.png"> Horizontal Timeline<br>
                                            <small>August 30th, 2017</small>
                                        </h4>
                                <hr>
                                <p>It is a long established fact that a reader will be distracted by the readable content of a page when looking at its layout. The point of using Lorem Ipsum is that it has a more-or-less normal distribution of letters, as opposed to using 'Content here, content here', making it look like readable English. Many desktop publishing packages and web page editors infancy.
                                    <br>
                                    <button class="btn btn-primary btn-round">Read more</button>
                                </p>
                            </li>
                            <li data-date="15/09/2017">
                                <h4>
                                            <img class="rounded float-left m-r-15" width="40" alt="user" src="https://bootdey.com/img/Content/avatar/avatar6.png"> Horizontal Timeline<br>
                                            <small>September 15th, 2017</small>
                                        </h4>
                                <hr>
                                <p>It is a long established fact that a reader will be distracted by the readable content of a page when looking at its layout. The point of using Lorem Ipsum is that it has a more-or-less normal distribution of letters, as opposed to using 'Content here, content here', making it look like readable English. Many desktop publishing packages and web page editors infancy.
                                    <br>
                                    <button class="btn btn-primary btn-round">Read more</button>
                                </p>
                            </li>
                            <li data-date="01/11/2017">
                                <h4>
                                            <img class="rounded float-left m-r-15" width="40" alt="user" src="https://bootdey.com/img/Content/avatar/avatar7.png"> Horizontal Timeline<br>
                                            <small>November 01st, 2017</small>
                                        </h4>
                                <hr>
                                <p>It is a long established fact that a reader will be distracted by the readable content of a page when looking at its layout. The point of using Lorem Ipsum is that it has a more-or-less normal distribution of letters, as opposed to using 'Content here, content here', making it look like readable English. Many desktop publishing packages and web page editors infancy.
                                    <br>
                                    <button class="btn btn-primary btn-round">Read more</button>
                                </p>
                            </li>
                            <li data-date="10/12/2017">
                                <h4>
                                            <img class="rounded float-left m-r-15" width="40" alt="user" src="https://bootdey.com/img/Content/avatar/avatar8.png"> Horizontal Timeline<br>
                                            <small>December 10th, 2017</small>
                                        </h4>
                                <hr>
                                <p>It is a long established fact that a reader will be distracted by the readable content of a page when looking at its layout. The point of using Lorem Ipsum is that it has a more-or-less normal distribution of letters, as opposed to using 'Content here, content here', making it look like readable English. Many desktop publishing packages and web page editors infancy.
                                    <br>
                                    <button class="btn btn-primary btn-round">Read more</button>
                                </p>
                            </li>
                            <li data-date="19/01/2018">
                                <h4>Event title here</h4>
                                <em>January 19th, 2018</em>
                                <p>It is a long established fact that a reader will be distracted by the readable content of a page when looking at its layout. The point of using Lorem Ipsum is that it has a more-or-less normal distribution of letters, as opposed to using 'Content here, content here', making it look like readable English. Many desktop publishing packages and web page editors infancy.</p>
                            </li>
                            <li data-date="03/03/2018">
                                <h4>Event title here</h4>
                                <em>March 3rd, 2018</em>
                                <p>It is a long established fact that a reader will be distracted by the readable content of a page when looking at its layout. The point of using Lorem Ipsum is that it has a more-or-less normal distribution of letters, as opposed to using 'Content here, content here', making it look like readable English. Many desktop publishing packages and web page editors infancy.</p>
                            </li>
                        </ol>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>
</div>

CSS code

This is the css code used to create this bootstrap snippet, You can copy and paste the following css code inside a page with bootstrap 4.1.1 included, to get the result that you can see in the preview selection

body{
    margin-top:20px;
    background:#eee;
}



.cd-horizontal-timeline ol, .cd-horizontal-timeline ul {
  list-style: none;
}
.cd-timeline-navigation a:hover, .cd-timeline-navigation a:focus {
   border-color:#313740;
  
}
.cd-horizontal-timeline a, .cd-horizontal-timeline a:hover, .cd-horizontal-timeline a:focus{ color:#313740;}
.cd-horizontal-timeline blockquote, .cd-horizontal-timeline q {
  quotes: none;
}
.cd-horizontal-timeline blockquote:before, .cd-horizontal-timeline blockquote:after,
.cd-horizontal-timeline q:before, .cd-horizontal-timeline q:after {
  content: '';
  content: none;
}
.cd-horizontal-timeline table {
  border-collapse: collapse;
  border-spacing: 0;
}
.cd-horizontal-timeline {
  opacity: 0;
  margin: 2em auto;
  -webkit-transition: opacity 0.2s;
  -moz-transition: opacity 0.2s;
  transition: opacity 0.2s;
}
.cd-horizontal-timeline::before {
  /* never visible - this is used in jQuery to check the current MQ */
  content: 'mobile';
  display: none;
}
.cd-horizontal-timeline.loaded {
  /* show the timeline after events position has been set (using JavaScript) */
  opacity: 1;
}
.cd-horizontal-timeline .timeline {
  position: relative;
  height: 100px;
  width: 90%;
  max-width: 800px;
  margin: 0 auto;
}
.cd-horizontal-timeline .events-wrapper {
  position: relative;
  height: 100%;
  margin: 0 40px;
  overflow: hidden;
}
.cd-horizontal-timeline .events-wrapper::after, .cd-horizontal-timeline .events-wrapper::before {
  /* these are used to create a shadow effect at the sides of the timeline */
  content: '';
  position: absolute;
  z-index: 2;
  top: 0;
  height: 100%;
  width: 20px;
}
.cd-horizontal-timeline .events-wrapper::before {
  left: 0;
  
}
.cd-horizontal-timeline .events-wrapper::after {
  right: 0;
  
}
.cd-horizontal-timeline .events {
  /* this is the grey line/timeline */
  position: absolute;
  z-index: 1;
  left: 0;
  top: 50px;
  height: 2px;
  /* width will be set using JavaScript */
  background: #dfdfdf;
  -webkit-transition: -webkit-transform 0.4s;
  -moz-transition: -moz-transform 0.4s;
  transition: transform 0.4s;
}
.cd-horizontal-timeline .filling-line {
  /* this is used to create the green line filling the timeline */
  position: absolute;
  z-index: 1;
  left: 0;
  top: 0;
  height: 100%;
  width: 100%;
  background-color: #313740;
  -webkit-transform: scaleX(0);
  -moz-transform: scaleX(0);
  -ms-transform: scaleX(0);
  -o-transform: scaleX(0);
  transform: scaleX(0);
  -webkit-transform-origin: left center;
  -moz-transform-origin: left center;
  -ms-transform-origin: left center;
  -o-transform-origin: left center;
  transform-origin: left center;
  -webkit-transition: -webkit-transform 0.3s;
  -moz-transition: -moz-transform 0.3s;
  transition: transform 0.3s;
}
.cd-horizontal-timeline .events a {
  position: absolute;
  bottom: 0;
  z-index: 2;
  text-align: center;
  font-size: 1rem;
  padding-bottom: 15px;
 
  /* fix bug on Safari - text flickering while timeline translates */
  -webkit-transform: translateZ(0);
  -moz-transform: translateZ(0);
  -ms-transform: translateZ(0);
  -o-transform: translateZ(0);
  transform: translateZ(0);
}
.cd-horizontal-timeline .events a::after {
  /* this is used to create the event spot */
  content: '';
  position: absolute;
  left: 50%;
  right: auto;
  -webkit-transform: translateX(-50%);
  -moz-transform: translateX(-50%);
  -ms-transform: translateX(-50%);
  -o-transform: translateX(-50%);
  transform: translateX(-50%);
  bottom: -5px;
  height: 12px;
  width: 12px;
  border-radius: 50%;
  border: 2px solid #dfdfdf;
  background-color: #f8f8f8;
  -webkit-transition: background-color 0.3s, border-color 0.3s;
  -moz-transition: background-color 0.3s, border-color 0.3s;
  transition: background-color 0.3s, border-color 0.3s;
}
.no-touch .cd-horizontal-timeline .events a:hover::after {
  background-color: #313740;
  border-color: #313740;
}
.cd-horizontal-timeline .events a.selected {
  pointer-events: none;
}
.cd-horizontal-timeline .events a.selected::after {
  background-color: #313740;
  border-color: #313740;
}
.cd-horizontal-timeline .events a.older-event::after {
  border-color: #313740;
}
@media only screen and (min-width: 1100px) {
  .cd-horizontal-timeline::before {
    /* never visible - this is used in jQuery to check the current MQ */
    content: 'desktop';
  }
}

.cd-timeline-navigation a {
  /* these are the left/right arrows to navigate the timeline */
  position: absolute;
  z-index: 1;
  top: 50%;
  bottom: auto;
  -webkit-transform: translateY(-50%);
  -moz-transform: translateY(-50%);
  -ms-transform: translateY(-50%);
  -o-transform: translateY(-50%);
  transform: translateY(-50%);
  height: 34px;
  width: 34px;
  border-radius: 50%;
  border: 2px solid #dfdfdf;
  /* replace text with an icon */
  overflow: hidden;
  color: transparent;
  text-indent: 100%;
  white-space: nowrap;
  -webkit-transition: border-color 0.3s;
  -moz-transition: border-color 0.3s;
  transition: border-color 0.3s;
}
.cd-timeline-navigation a::after {
  /* arrow icon */
  content: '';
  position: absolute;
  height: 16px;
  width: 16px;
  left: 50%;
  top: 50%;
  bottom: auto;
  right: auto;
  -webkit-transform: translateX(-50%) translateY(-50%);
  -moz-transform: translateX(-50%) translateY(-50%);
  -ms-transform: translateX(-50%) translateY(-50%);
  -o-transform: translateX(-50%) translateY(-50%);
  transform: translateX(-50%) translateY(-50%);
}
.cd-timeline-navigation a.prev {
  left: 0;
  -webkit-transform: translateY(-50%) rotate(180deg);
  -moz-transform: translateY(-50%) rotate(180deg);
  -ms-transform: translateY(-50%) rotate(180deg);
  -o-transform: translateY(-50%) rotate(180deg);
  transform: translateY(-50%) rotate(180deg);
}
.cd-timeline-navigation a.next {
  right: 0;
}
.no-touch .cd-timeline-navigation a:hover {
  border-color: #7b9d6f;
}
.cd-timeline-navigation a.inactive {
  cursor: not-allowed;
}
.cd-timeline-navigation a.inactive::after {
  background-position: 0 -16px;
}
.no-touch .cd-timeline-navigation a.inactive:hover {
  border-color: #dfdfdf;
}

.cd-horizontal-timeline .events-content {
  position: relative;
  width: 100%;
  margin: 2em 0;
  overflow: hidden;
  -webkit-transition: height 0.4s;
  -moz-transition: height 0.4s;
  transition: height 0.4s;
}
.cd-horizontal-timeline .events-content li {
  position: absolute;
  z-index: 1;
  width: 100%;
  left: 0;
  top: 0;
  -webkit-transform: translateX(-100%);
  -moz-transform: translateX(-100%);
  -ms-transform: translateX(-100%);
  -o-transform: translateX(-100%);
  transform: translateX(-100%);
  padding: 0 5%;
  opacity: 0;
  -webkit-animation-duration: 0.4s;
  -moz-animation-duration: 0.4s;
  animation-duration: 0.4s;
  -webkit-animation-timing-function: ease-in-out;
  -moz-animation-timing-function: ease-in-out;
  animation-timing-function: ease-in-out;
}
.cd-horizontal-timeline .events-content li.selected {
  /* visible event content */
  position: relative;
  z-index: 2;
  opacity: 1;
  -webkit-transform: translateX(0);
  -moz-transform: translateX(0);
  -ms-transform: translateX(0);
  -o-transform: translateX(0);
  transform: translateX(0);
}
.cd-horizontal-timeline .events-content li.enter-right, .cd-horizontal-timeline .events-content li.leave-right {
  -webkit-animation-name: cd-enter-right;
  -moz-animation-name: cd-enter-right;
  animation-name: cd-enter-right;
}
.cd-horizontal-timeline .events-content li.enter-left, .cd-horizontal-timeline .events-content li.leave-left {
  -webkit-animation-name: cd-enter-left;
  -moz-animation-name: cd-enter-left;
  animation-name: cd-enter-left;
}
.cd-horizontal-timeline .events-content li.leave-right, .cd-horizontal-timeline .events-content li.leave-left {
  -webkit-animation-direction: reverse;
  -moz-animation-direction: reverse;
  animation-direction: reverse;
}
.cd-horizontal-timeline .events-content li > * {
  max-width: 800px;
  margin: 0 auto;
}
.cd-horizontal-timeline .events-content h4 {
  font-weight: 700;
  margin-bottom: 0px;
  line-height: 20px;
  margin-bottom: 15px;
}
.cd-horizontal-timeline .events-content h4 small {
  font-weight: 400;
  line-height: normal;
  font-size: 15px;
}
.cd-horizontal-timeline .events-content em {
  display: block;
  font-style: italic;
  margin: 10px auto;
}
.cd-horizontal-timeline .events-content em::before {
  content: '- ';
}
.cd-horizontal-timeline .events-content p {
  font-size: 16px;
  margin-top: 15px;
  
}

@media only screen and (min-width: 768px) {
  
  .cd-horizontal-timeline .events-content em {
    font-size: 1rem;
  }  
}

@media only screen and (max-width: 767px) {

  .cd-horizontal-timeline.loaded{ margin: 0;}  
  .cd-horizontal-timeline .timeline{ width: 100%;}
  .cd-horizontal-timeline ol, .cd-horizontal-timeline ul{padding: 0;margin: 0;}
  .cd-horizontal-timeline .events-content h4{ font-size: 16px;}
  .cd-horizontal-timeline .events-content{ margin: 0;}
  
}

@-webkit-keyframes cd-enter-right {
  0% {
    opacity: 0;
    -webkit-transform: translateX(100%);
  }
  100% {
    opacity: 1;
    -webkit-transform: translateX(0%);
  }
}
@-moz-keyframes cd-enter-right {
  0% {
    opacity: 0;
    -moz-transform: translateX(100%);
  }
  100% {
    opacity: 1;
    -moz-transform: translateX(0%);
  }
}
@keyframes cd-enter-right {
  0% {
    opacity: 0;
    -webkit-transform: translateX(100%);
    -moz-transform: translateX(100%);
    -ms-transform: translateX(100%);
    -o-transform: translateX(100%);
    transform: translateX(100%);
  }
  100% {
    opacity: 1;
    -webkit-transform: translateX(0%);
    -moz-transform: translateX(0%);
    -ms-transform: translateX(0%);
    -o-transform: translateX(0%);
    transform: translateX(0%);
  }
}
@-webkit-keyframes cd-enter-left {
  0% {
    opacity: 0;
    -webkit-transform: translateX(-100%);
  }
  100% {
    opacity: 1;
    -webkit-transform: translateX(0%);
  }
}
@-moz-keyframes cd-enter-left {
  0% {
    opacity: 0;
    -moz-transform: translateX(-100%);
  }
  100% {
    opacity: 1;
    -moz-transform: translateX(0%);
  }
}
@keyframes cd-enter-left {
  0% {
    opacity: 0;
    -webkit-transform: translateX(-100%);
    -moz-transform: translateX(-100%);
    -ms-transform: translateX(-100%);
    -o-transform: translateX(-100%);
    transform: translateX(-100%);
  }
  100% {
    opacity: 1;
    -webkit-transform: translateX(0%);
    -moz-transform: translateX(0%);
    -ms-transform: translateX(0%);
    -o-transform: translateX(0%);
    transform: translateX(0%);
  }
}
.timeline:before{
  content: " ";
    display:none;
    bottom: 0;
    left: 0%;
    width: 0px;
    margin-left: -1.5px;
    background-color: #eeeeee;
}

Javascript/Jquery code

This is the javascript code used to create this bootstrap snippet, You can copy and paste the following javascript code inside a page with bootstrap 4.1.1 included, to get the result that you can see in the preview selection

jQuery(document).ready(function($){
    var timelines = $('.cd-horizontal-timeline'),
		eventsMinDistance = 60;

	(timelines.length > 0) && initTimeline(timelines);

	function initTimeline(timelines) {
		timelines.each(function(){
			var timeline = $(this),
				timelineComponents = {};
			//cache timeline components 
			timelineComponents['timelineWrapper'] = timeline.find('.events-wrapper');
			timelineComponents['eventsWrapper'] = timelineComponents['timelineWrapper'].children('.events');
			timelineComponents['fillingLine'] = timelineComponents['eventsWrapper'].children('.filling-line');
			timelineComponents['timelineEvents'] = timelineComponents['eventsWrapper'].find('a');
			timelineComponents['timelineDates'] = parseDate(timelineComponents['timelineEvents']);
			timelineComponents['eventsMinLapse'] = minLapse(timelineComponents['timelineDates']);
			timelineComponents['timelineNavigation'] = timeline.find('.cd-timeline-navigation');
			timelineComponents['eventsContent'] = timeline.children('.events-content');

			//assign a left postion to the single events along the timeline
			setDatePosition(timelineComponents, eventsMinDistance);
			//assign a width to the timeline
			var timelineTotWidth = setTimelineWidth(timelineComponents, eventsMinDistance);
			//the timeline has been initialize - show it
			timeline.addClass('loaded');

			//detect click on the next arrow
			timelineComponents['timelineNavigation'].on('click', '.next', function(event){
				event.preventDefault();
				updateSlide(timelineComponents, timelineTotWidth, 'next');
			});
			//detect click on the prev arrow
			timelineComponents['timelineNavigation'].on('click', '.prev', function(event){
				event.preventDefault();
				updateSlide(timelineComponents, timelineTotWidth, 'prev');
			});
			//detect click on the a single event - show new event content
			timelineComponents['eventsWrapper'].on('click', 'a', function(event){
				event.preventDefault();
				timelineComponents['timelineEvents'].removeClass('selected');
				$(this).addClass('selected');
				updateOlderEvents($(this));
				updateFilling($(this), timelineComponents['fillingLine'], timelineTotWidth);
				updateVisibleContent($(this), timelineComponents['eventsContent']);
			});

			//on swipe, show next/prev event content
			timelineComponents['eventsContent'].on('swipeleft', function(){
				var mq = checkMQ();
				( mq == 'mobile' ) && showNewContent(timelineComponents, timelineTotWidth, 'next');
			});
			timelineComponents['eventsContent'].on('swiperight', function(){
				var mq = checkMQ();
				( mq == 'mobile' ) && showNewContent(timelineComponents, timelineTotWidth, 'prev');
			});

			//keyboard navigation
			$(document).keyup(function(event){
				if(event.which=='37' && elementInViewport(timeline.get(0)) ) {
					showNewContent(timelineComponents, timelineTotWidth, 'prev');
				} else if( event.which=='39' && elementInViewport(timeline.get(0))) {
					showNewContent(timelineComponents, timelineTotWidth, 'next');
				}
			});
		});
	}

	function updateSlide(timelineComponents, timelineTotWidth, string) {
		//retrieve translateX value of timelineComponents['eventsWrapper']
		var translateValue = getTranslateValue(timelineComponents['eventsWrapper']),
			wrapperWidth = Number(timelineComponents['timelineWrapper'].css('width').replace('px', ''));
		//translate the timeline to the left('next')/right('prev') 
		(string == 'next') 
			? translateTimeline(timelineComponents, translateValue - wrapperWidth + eventsMinDistance, wrapperWidth - timelineTotWidth)
			: translateTimeline(timelineComponents, translateValue + wrapperWidth - eventsMinDistance);
	}

	function showNewContent(timelineComponents, timelineTotWidth, string) {
		//go from one event to the next/previous one
		var visibleContent =  timelineComponents['eventsContent'].find('.selected'),
			newContent = ( string == 'next' ) ? visibleContent.next() : visibleContent.prev();

		if ( newContent.length > 0 ) { //if there's a next/prev event - show it
			var selectedDate = timelineComponents['eventsWrapper'].find('.selected'),
				newEvent = ( string == 'next' ) ? selectedDate.parent('li').next('li').children('a') : selectedDate.parent('li').prev('li').children('a');
			
			updateFilling(newEvent, timelineComponents['fillingLine'], timelineTotWidth);
			updateVisibleContent(newEvent, timelineComponents['eventsContent']);
			newEvent.addClass('selected');
			selectedDate.removeClass('selected');
			updateOlderEvents(newEvent);
			updateTimelinePosition(string, newEvent, timelineComponents);
		}
	}

	function updateTimelinePosition(string, event, timelineComponents) {
		//translate timeline to the left/right according to the position of the selected event
		var eventStyle = window.getComputedStyle(event.get(0), null),
			eventLeft = Number(eventStyle.getPropertyValue("left").replace('px', '')),
			timelineWidth = Number(timelineComponents['timelineWrapper'].css('width').replace('px', '')),
			timelineTotWidth = Number(timelineComponents['eventsWrapper'].css('width').replace('px', ''));
		var timelineTranslate = getTranslateValue(timelineComponents['eventsWrapper']);

        if( (string == 'next' && eventLeft > timelineWidth - timelineTranslate) || (string == 'prev' && eventLeft < - timelineTranslate) ) {
        	translateTimeline(timelineComponents, - eventLeft + timelineWidth/2, timelineWidth - timelineTotWidth);
        }
	}

	function translateTimeline(timelineComponents, value, totWidth) {
		var eventsWrapper = timelineComponents['eventsWrapper'].get(0);
		value = (value > 0) ? 0 : value; //only negative translate value
		value = ( !(typeof totWidth === 'undefined') &&  value < totWidth ) ? totWidth : value; //do not translate more than timeline width
		setTransformValue(eventsWrapper, 'translateX', value+'px');
		//update navigation arrows visibility
		(value == 0 ) ? timelineComponents['timelineNavigation'].find('.prev').addClass('inactive') : timelineComponents['timelineNavigation'].find('.prev').removeClass('inactive');
		(value == totWidth ) ? timelineComponents['timelineNavigation'].find('.next').addClass('inactive') : timelineComponents['timelineNavigation'].find('.next').removeClass('inactive');
	}

	function updateFilling(selectedEvent, filling, totWidth) {
		//change .filling-line length according to the selected event
		var eventStyle = window.getComputedStyle(selectedEvent.get(0), null),
			eventLeft = eventStyle.getPropertyValue("left"),
			eventWidth = eventStyle.getPropertyValue("width");
		eventLeft = Number(eventLeft.replace('px', '')) + Number(eventWidth.replace('px', ''))/2;
		var scaleValue = eventLeft/totWidth;
		setTransformValue(filling.get(0), 'scaleX', scaleValue);
	}

	function setDatePosition(timelineComponents, min) {
		for (i = 0; i < timelineComponents['timelineDates'].length; i++) { 
		    var distance = daydiff(timelineComponents['timelineDates'][0], timelineComponents['timelineDates'][i]),
		    	distanceNorm = Math.round(distance/timelineComponents['eventsMinLapse']) + 2;
		    timelineComponents['timelineEvents'].eq(i).css('left', distanceNorm*min+'px');
		}
	}

	function setTimelineWidth(timelineComponents, width) {
		var timeSpan = daydiff(timelineComponents['timelineDates'][0], timelineComponents['timelineDates'][timelineComponents['timelineDates'].length-1]),
			timeSpanNorm = timeSpan/timelineComponents['eventsMinLapse'],
			timeSpanNorm = Math.round(timeSpanNorm) + 4,
			totalWidth = timeSpanNorm*width;
		timelineComponents['eventsWrapper'].css('width', totalWidth+'px');
		updateFilling(timelineComponents['eventsWrapper'].find('a.selected'), timelineComponents['fillingLine'], totalWidth);
		updateTimelinePosition('next', timelineComponents['eventsWrapper'].find('a.selected'), timelineComponents);
	
		return totalWidth;
	}

	function updateVisibleContent(event, eventsContent) {
		var eventDate = event.data('date'),
			visibleContent = eventsContent.find('.selected'),
			selectedContent = eventsContent.find('[data-date="'+ eventDate +'"]'),
			selectedContentHeight = selectedContent.height();

		if (selectedContent.index() > visibleContent.index()) {
			var classEnetering = 'selected enter-right',
				classLeaving = 'leave-left';
		} else {
			var classEnetering = 'selected enter-left',
				classLeaving = 'leave-right';
		}

		selectedContent.attr('class', classEnetering);
		visibleContent.attr('class', classLeaving).one('webkitAnimationEnd oanimationend msAnimationEnd animationend', function(){
			visibleContent.removeClass('leave-right leave-left');
			selectedContent.removeClass('enter-left enter-right');
		});
		eventsContent.css('height', selectedContentHeight+'px');
	}

	function updateOlderEvents(event) {
		event.parent('li').prevAll('li').children('a').addClass('older-event').end().end().nextAll('li').children('a').removeClass('older-event');
	}

	function getTranslateValue(timeline) {
		var timelineStyle = window.getComputedStyle(timeline.get(0), null),
			timelineTranslate = timelineStyle.getPropertyValue("-webkit-transform") ||
         		timelineStyle.getPropertyValue("-moz-transform") ||
         		timelineStyle.getPropertyValue("-ms-transform") ||
         		timelineStyle.getPropertyValue("-o-transform") ||
         		timelineStyle.getPropertyValue("transform");

        if( timelineTranslate.indexOf('(') >=0 ) {
        	var timelineTranslate = timelineTranslate.split('(')[1];
    		timelineTranslate = timelineTranslate.split(')')[0];
    		timelineTranslate = timelineTranslate.split(',');
    		var translateValue = timelineTranslate[4];
        } else {
        	var translateValue = 0;
        }

        return Number(translateValue);
	}

	function setTransformValue(element, property, value) {
		element.style["-webkit-transform"] = property+"("+value+")";
		element.style["-moz-transform"] = property+"("+value+")";
		element.style["-ms-transform"] = property+"("+value+")";
		element.style["-o-transform"] = property+"("+value+")";
		element.style["transform"] = property+"("+value+")";
	}

	//based on http://stackoverflow.com/questions/542938/how-do-i-get-the-number-of-days-between-two-dates-in-javascript
	function parseDate(events) {
		var dateArrays = [];
		events.each(function(){
			var singleDate = $(this),
				dateComp = singleDate.data('date').split('T');
			if( dateComp.length > 1 ) { //both DD/MM/YEAR and time are provided
				var dayComp = dateComp[0].split('/'),
					timeComp = dateComp[1].split(':');
			} else if( dateComp[0].indexOf(':') >=0 ) { //only time is provide
				var dayComp = ["2000", "0", "0"],
					timeComp = dateComp[0].split(':');
			} else { //only DD/MM/YEAR
				var dayComp = dateComp[0].split('/'),
					timeComp = ["0", "0"];
			}
			var	newDate = new Date(dayComp[2], dayComp[1]-1, dayComp[0], timeComp[0], timeComp[1]);
			dateArrays.push(newDate);
		});
	    return dateArrays;
	}

	function daydiff(first, second) {
	    return Math.round((second-first));
	}

	function minLapse(dates) {
		//determine the minimum distance among events
		var dateDistances = [];
		for (i = 1; i < dates.length; i++) { 
		    var distance = daydiff(dates[i-1], dates[i]);
		    dateDistances.push(distance);
		}
		return Math.min.apply(null, dateDistances);
	}

	/*
		How to tell if a DOM element is visible in the current viewport?
		http://stackoverflow.com/questions/123999/how-to-tell-if-a-dom-element-is-visible-in-the-current-viewport
	*/
	function elementInViewport(el) {
		var top = el.offsetTop;
		var left = el.offsetLeft;
		var width = el.offsetWidth;
		var height = el.offsetHeight;

		while(el.offsetParent) {
		    el = el.offsetParent;
		    top += el.offsetTop;
		    left += el.offsetLeft;
		}

		return (
		    top < (window.pageYOffset + window.innerHeight) &&
		    left < (window.pageXOffset + window.innerWidth) &&
		    (top + height) > window.pageYOffset &&
		    (left + width) > window.pageXOffset
		);
	}

	function checkMQ() {
		//check if mobile or desktop device
		return window.getComputedStyle(document.querySelector('.cd-horizontal-timeline'), '::before').getPropertyValue('content').replace(/'/g, "").replace(/"/g, "");
	}
}); 

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Bootstrap 4.1.1

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