Make it responsive solution

[Isaac Hormel]

Just replace your timeline.css with this and your timeline will be responsive for displays that are <=450 pixels ;P

@charset "UTF-8";
/*!
Timeline - v0.0.2
ilker Yılmaz & greenman/rewrite123
https://github.com/ilkeryilmaz/timeline
*/
NEW STUFF:
Now it resizes at displays that are 450 pixels
*/
.timeline-container {
position: relative; }
.timeline-container::after {
content: '';
display: table;
clear: both;
}
.timeline {
width: 100%;
}
.timeline-list {
position: relative;
width: 100%;
overflow: hidden;
margin: 0;
padding: 0;
}
.timeline-list-wrap {
position: relative;
top: 0;
left: 0;
display: block;
transform: translate3d(0, 0, 0);
transition: transform 1s cubic-bezier(0.455, 0.03, 0.515, 0.955);
}
.timeline-item {
float: left;
width: 800px;
height: 400px;
border: 1px solid #ddd;
box-sizing: border-box;
}
.timeline-dots-wrap {
position: absolute;
overflow: hidden;
}
.timeline-horizontal .timeline-dots-wrap {
width: 100%;
height: 35px;
}
.timeline-vertical .timeline-dots-wrap {
width: 65px;
height: 100%;
top: 0;
}
.timeline-dots-wrap.bottom {
bottom: -50px;
}
.timeline-dots-wrap.top {
top: -50px;
}
.timeline-dots-wrap.left {
left: -65px;
}
.timeline-dots-wrap.right {
right: -70px;
}
.timeline-dots {
margin: 0;
padding: 0;
position: relative;
width: 100%;
height: 100%;
transition: transform 1s cubic-bezier(0.455, 0.03, 0.515, 0.955);
}
.timeline-horizontal .timeline-dots {
background: url("../img/timeline-bg.png") bottom repeat-x;
}
.timeline-vertical .timeline-dots {
background: url("../img/timeline-vertical-bg.png") left repeat-y;
}
.timeline-dots li {
transition: all 1s cubic-bezier(0.455, 0.03, 0.515, 0.955);
list-style: none;
overflow: hidden;
}
.timeline-horizontal .timeline-dots li {
float: left;
width: 50px;
text-align: center;
}
.timeline-vertical .timeline-dots li {
width: 100%;
}
.timeline-dots li.slide-active button {
color: #2972ca;
font-size: 15px;
}
.timeline-dots button {
cursor: pointer;
border: none;
outline: none;
color: #333;
font-size: 12px;
transition: all 1s cubic-bezier(0.455, 0.03, 0.515, 0.955);
}
.timeline-horizontal .timeline-dots button {
background: url("../img/date-icon.png") bottom no-repeat;
padding-bottom: 15px;
}
.timeline-vertical .timeline-dots button {
background: url("../img/date-icon-vertical.png") left no-repeat;
padding-left: 15px;
}
.timeline-container {
width: 800px;
margin: 0 auto;
}
.timeline-list {
width: 800px;
}
.timeline-item {
width: 800px;
height: 400px;
padding: 10px;
border: 1px solid #ddd;
}

/* FROM HERE ON OUT IS NEW! */

.timeline-background{
background-repeat: no-repeat;
background-size: cover;
background-position: center;
height: 100%;
padding: 0px;
margin: 0px;
border: 0px;
}
.timeline-vertical-center{
min-height: 100%;
display: flex;
align-items: center;
}

@media (max-width:450px){
.timeline-container {
position: relative; }
.timeline-container::after {
content: '';
display: table;
clear: both;
}
.timeline {
width: 100%;
}
.timeline-list {
position: relative;
width: 100%;
overflow: hidden;
margin: 0;
padding: 0;
}
.timeline-list-wrap {
position: relative;
top: 0;
left: 0;
display: block;
transform: translate3d(0, 0, 0);
transition: transform 1s cubic-bezier(0.455, 0.03, 0.515, 0.955);
}
.timeline-item {
float: left;
width: 350px;
height: 400px;
border: 1px solid #ddd;
box-sizing: border-box;
}
.timeline-dots-wrap {
position: absolute;
overflow: hidden;
}
.timeline-horizontal .timeline-dots-wrap {
width: 100%;
height: 35px;
}
.timeline-vertical .timeline-dots-wrap {
width: 45px;
height: 100%;
top: 0;
}
.timeline-dots-wrap.bottom {
bottom: -50px;
}
.timeline-dots-wrap.top {
top: -50px;
}
.timeline-dots-wrap.left {
left: -65px;
}
.timeline-dots-wrap.right {
right: -70px;
}
.timeline-dots {
margin: 0;
padding: 0;
position: relative;
width: 100%;
height: 100%;
transition: transform 1s cubic-bezier(0.455, 0.03, 0.515, 0.955);
}
.timeline-horizontal .timeline-dots {
background: url("../img/timeline-bg.png") bottom repeat-x;
}
.timeline-vertical .timeline-dots {
background: url("../img/timeline-vertical-bg.png") left repeat-y;
}
.timeline-dots li {
transition: all 1s cubic-bezier(0.455, 0.03, 0.515, 0.955);
list-style: none;
overflow: hidden;
}
.timeline-horizontal .timeline-dots li {
float: left;
width: 40px;
text-align: center;
}
.timeline-vertical .timeline-dots li {
width: 100%;
}
.timeline-dots li.slide-active button {
color: #2972ca;
font-size: 15px;
}
.timeline-dots button {
cursor: pointer;
border: none;
outline: none;
color: #333;
font-size: 12px;
transition: all 1s cubic-bezier(0.455, 0.03, 0.515, 0.955);
}
.timeline-horizontal .timeline-dots button {
background: url("../img/date-icon.png") bottom no-repeat;
padding-bottom: 15px;
}
.timeline-vertical .timeline-dots button {
background: url("../img/date-icon-vertical.png") left no-repeat;
padding-left: 15px;
}
.timeline-container {
width: 350px;
margin: 0 auto;
}
.timeline-list {
width: 350px;
}
.timeline-item {
width: 350px;
height: 400px;
padding: 10px;
border: 1px solid #ddd;
}
}

EXAMPLE:
Uses a little bootstrap for centering text and a few other things, but this template can work with a little bit of elbow grease ;P

<div class="timeline-container timeline-theme-1" id="idHandler">
<div class="timeline js-timeline">
<div data-time="2011" id="timeline-clicker">
<div class="timeline-background" style="background-image: url(IMAGE_GOES_HERE.jpg);">
<div class="timeline-vertical-center" style="width: 100%;">
<div class="text-center text-white" style="width: 100%;">
<h3><strong>TEXT GOES HERE</strong></h3>
</div>
</div>
</div>
</div>
</div>
</div>

[ilker Yılmaz]

Hi,

Thank you for your support. But you must send your updates as a pull request.

Thank you.