JavaScript preprocessors can help make authoring JavaScript easier and more convenient. For instance, CoffeeScript can help prevent easy-to-make mistakes and offer a cleaner syntax and Babel can bring ECMAScript 6 features to browsers that only support ECMAScript 5.
Any URL's added here will be added as <script>
s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.
You can apply a script from anywhere on the web to your Pen. Just put a URL to it here and we'll add it, in the order you have them, before the JavaScript in the Pen itself.
If the script you link to has the file extension of a preprocessor, we'll attempt to process it before applying.
You can also link to another Pen here, and we'll pull the JavaScript from that Pen and include it. If it's using a matching preprocessor, we'll combine the code before preprocessing, so you can use the linked Pen as a true dependency.
HTML Settings
Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.
<section class="section intro">
<div class="container">
<h1>Horizontal Timeline →</h1>
</div>
</section>
<section class="timeline">
<ol>
<li>
<div>
<time>1934</time> At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium
</div>
</li>
<li>
<div>
<time>1937</time> Proin quam velit, efficitur vel neque vitae, rhoncus commodo mi. Suspendisse finibus mauris et bibendum molestie. Aenean ex augue, varius et pulvinar in, pretium non nisi.
</div>
</li>
<li>
<div>
<time>1940</time> Proin iaculis, nibh eget efficitur varius, libero tellus porta dolor, at pulvinar tortor ex eget ligula. Integer eu dapibus arcu, sit amet sollicitudin eros.
</div>
</li>
<li>
<div>
<time>1943</time> In mattis elit vitae odio posuere, nec maximus massa varius. Suspendisse varius volutpat mattis. Vestibulum id magna est.
</div>
</li>
<li>
<div>
<time>1946</time> In mattis elit vitae odio posuere, nec maximus massa varius. Suspendisse varius volutpat mattis. Vestibulum id magna est.
</div>
</li>
<li>
<div>
<time>1956</time> In mattis elit vitae odio posuere, nec maximus massa varius. Suspendisse varius volutpat mattis. Vestibulum id magna est.
</div>
</li>
<li>
<div>
<time>1957</time> In mattis elit vitae odio posuere, nec maximus massa varius. Suspendisse varius volutpat mattis. Vestibulum id magna est.
</div>
</li>
<li>
<div>
<time>1967</time> Aenean condimentum odio a bibendum rhoncus. Ut mauris felis, volutpat eget porta faucibus, euismod quis ante.
</div>
</li>
<li>
<div>
<time>1977</time> Vestibulum porttitor lorem sed pharetra dignissim. Nulla maximus, dui a tristique iaculis, quam dolor convallis enim, non dignissim ligula ipsum a turpis.
</div>
</li>
<li>
<div>
<time>1985</time> In mattis elit vitae odio posuere, nec maximus massa varius. Suspendisse varius volutpat mattis. Vestibulum id magna est.
</div>
</li>
<li>
<div>
<time>2000</time> In mattis elit vitae odio posuere, nec maximus massa varius. Suspendisse varius volutpat mattis. Vestibulum id magna est.
</div>
</li>
<li>
<div>
<time>2005</time> In mattis elit vitae odio posuere, nec maximus massa varius. Suspendisse varius volutpat mattis. Vestibulum id magna est.
</div>
</li>
<li></li>
</ol>
<div class="arrows">
<button class="arrow arrow__prev disabled" disabled>
<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/162656/arrow_prev.svg" alt="prev timeline arrow">
</button>
<button class="arrow arrow__next">
<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/162656/arrow_next.svg" alt="next timeline arrow">
</button>
</div>
</section>
*,
*::before,
*::after {
margin: 0;
padding: 0;
box-sizing: border-box;
}
button {
background: transparent;
border: none;
cursor: pointer;
outline: none;
}
body {
font: normal 16px/1.5 "Helvetica Neue", sans-serif;
background: #456990;
color: #fff;
}
/* .section SECTION
–––––––––––––––––––––––––––––––––––––––––––––––––– */
.section {
background: #F45B69;
padding: 50px 0;
}
.section .container {
width: 90%;
max-width: 1200px;
margin: 0 auto;
text-align: center;
}
.section h1 {
font-size: 2.5rem;
}
.section h2 {
font-size: 1.3rem;
}
/* TIMELINE
–––––––––––––––––––––––––––––––––––––––––––––––––– */
.timeline {
white-space: nowrap;
overflow-x: hidden;
}
.timeline ol {
font-size: 0;
width: 100vw;
padding: 250px 0;
transition: all 1s;
}
.timeline ol li {
position: relative;
display: inline-block;
list-style-type: none;
width: 160px;
height: 3px;
background: #fff;
}
.timeline ol li:last-child {
width: 280px;
}
.timeline ol li:not(:first-child) {
margin-left: 14px;
}
.timeline ol li:not(:last-child)::after {
content: '';
position: absolute;
top: 50%;
left: calc(100% + 1px);
bottom: 0;
width: 12px;
height: 12px;
transform: translateY(-50%);
border-radius: 50%;
background: #F45B69;
}
.timeline ol li div {
position: absolute;
left: calc(100% + 7px);
width: 280px;
padding: 15px;
font-size: 1rem;
white-space: normal;
color: black;
background: white;
}
.timeline ol li div::before {
content: '';
position: absolute;
top: 100%;
left: 0;
width: 0;
height: 0;
border-style: solid;
}
.timeline ol li:nth-child(odd) div {
top: -16px;
transform: translateY(-100%);
}
.timeline ol li:nth-child(odd) div::before {
top: 100%;
border-width: 8px 8px 0 0;
border-color: white transparent transparent transparent;
}
.timeline ol li:nth-child(even) div {
top: calc(100% + 16px);
}
.timeline ol li:nth-child(even) div::before {
top: -8px;
border-width: 8px 0 0 8px;
border-color: transparent transparent transparent white;
}
.timeline time {
display: block;
font-size: 1.2rem;
font-weight: bold;
margin-bottom: 8px;
}
/* TIMELINE ARROWS
–––––––––––––––––––––––––––––––––––––––––––––––––– */
.timeline .arrows {
display: flex;
justify-content: center;
margin-bottom: 20px;
}
.timeline .arrows .arrow__prev {
margin-right: 20px;
}
.timeline .disabled {
opacity: .5;
}
.timeline .arrows img {
width: 45px;
height: 45px;
}
/* GENERAL MEDIA QUERIES
–––––––––––––––––––––––––––––––––––––––––––––––––– */
@media screen and (max-width: 599px) {
.timeline ol,
.timeline ol li {
width: auto;
}
.timeline ol {
padding: 0;
transform: none !important;
}
.timeline ol li {
display: block;
height: auto;
background: transparent;
}
.timeline ol li:first-child {
margin-top: 25px;
}
.timeline ol li:not(:first-child) {
margin-left: auto;
}
.timeline ol li div {
width: 94%;
height: auto !important;
margin: 0 auto 25px;
}
.timeline ol li div {
position: static;
}
.timeline ol li:nth-child(odd) div {
transform: none;
}
.timeline ol li:nth-child(odd) div::before,
.timeline ol li:nth-child(even) div::before {
left: 50%;
top: 100%;
transform: translateX(-50%);
border: none;
border-left: 1px solid white;
height: 25px;
}
.timeline ol li:last-child,
.timeline ol li:nth-last-child(2) div::before,
.timeline ol li:not(:last-child)::after,
.timeline .arrows {
display: none;
}
}
(function() {
// VARIABLES
const timeline = document.querySelector(".timeline ol"),
elH = document.querySelectorAll(".timeline li > div"),
arrows = document.querySelectorAll(".timeline .arrows .arrow"),
arrowPrev = document.querySelector(".timeline .arrows .arrow__prev"),
arrowNext = document.querySelector(".timeline .arrows .arrow__next"),
firstItem = document.querySelector(".timeline li:first-child"),
lastItem = document.querySelector(".timeline li:last-child"),
xScrolling = 280,
disabledClass = "disabled";
// START
window.addEventListener("load", init);
function init() {
setEqualHeights(elH);
animateTl(xScrolling, arrows, timeline);
setSwipeFn(timeline, arrowPrev, arrowNext);
setKeyboardFn(arrowPrev, arrowNext);
}
// SET EQUAL HEIGHTS
function setEqualHeights(el) {
let counter = 0;
for (let i = 0; i < el.length; i++) {
const singleHeight = el[i].offsetHeight;
if (counter < singleHeight) {
counter = singleHeight;
}
}
for (let i = 0; i < el.length; i++) {
el[i].style.height = `${counter}px`;
}
}
// CHECK IF AN ELEMENT IS IN VIEWPORT
// http://stackoverflow.com/questions/123999/how-to-tell-if-a-dom-element-is-visible-in-the-current-viewport
function isElementInViewport(el) {
const rect = el.getBoundingClientRect();
return (
rect.top >= 0 &&
rect.left >= 0 &&
rect.bottom <= (window.innerHeight || document.documentElement.clientHeight) &&
rect.right <= (window.innerWidth || document.documentElement.clientWidth)
);
}
// SET STATE OF PREV/NEXT ARROWS
function setBtnState(el, flag = true) {
if (flag) {
el.classList.add(disabledClass);
} else {
if (el.classList.contains(disabledClass)) {
el.classList.remove(disabledClass);
}
el.disabled = false;
}
}
// ANIMATE TIMELINE
function animateTl(scrolling, el, tl) {
let counter = 0;
for (let i = 0; i < el.length; i++) {
el[i].addEventListener("click", function() {
if (!arrowPrev.disabled) {
arrowPrev.disabled = true;
}
if (!arrowNext.disabled) {
arrowNext.disabled = true;
}
const sign = (this.classList.contains("arrow__prev")) ? "" : "-";
if (counter === 0) {
tl.style.transform = `translateX(-${scrolling}px)`;
} else {
const tlStyle = getComputedStyle(tl);
// add more browser prefixes if needed here
const tlTransform = tlStyle.getPropertyValue("-webkit-transform") || tlStyle.getPropertyValue("transform");
const values = parseInt(tlTransform.split(",")[4]) + parseInt(`${sign}${scrolling}`);
tl.style.transform = `translateX(${values}px)`;
}
setTimeout(() => {
isElementInViewport(firstItem) ? setBtnState(arrowPrev) : setBtnState(arrowPrev, false);
isElementInViewport(lastItem) ? setBtnState(arrowNext) : setBtnState(arrowNext, false);
}, 1100);
counter++;
});
}
}
// ADD SWIPE SUPPORT FOR TOUCH DEVICES
function setSwipeFn(tl, prev, next) {
const hammer = new Hammer(tl);
hammer.on("swipeleft", () => next.click());
hammer.on("swiperight", () => prev.click());
}
// ADD BASIC KEYBOARD FUNCTIONALITY
function setKeyboardFn(prev, next) {
document.addEventListener("keydown", (e) => {
if ((e.which === 37) || (e.which === 39)) {
const timelineOfTop = timeline.offsetTop;
const y = window.pageYOffset;
if (timelineOfTop !== y) {
window.scrollTo(0, timelineOfTop);
}
if (e.which === 37) {
prev.click();
} else if (e.which === 39) {
next.click();
}
}
});
}
})();
Also see: Tab Triggers