:root {
  --container-height:60vh;
  --container-margin:0;
  --timeline-container-width:80rem;
	--timeline-container-bg-color: transparent;
	--timeline-item-bg-color: transparent;
	--timeline-item-hover-bg-color: #f5ab30;
	--timeline-year-color: #ffffff;
	--timeline-content-bg-color: #e0efff;
	--timeline-content-hover-bg-color: #fcedc7;
	--timeline-content-hover-zoom: 100%;
	--milestone: url('//www.unisa.edu.au/siteassets/about-unisa/srap/images/milestone.png');	
	--the-way: url('//www.unisa.edu.au/siteassets/about-unisa/srap/images/milestone-bg.png');
}

.container {
	background: url("./images/artwork-10opacity-25saturation.jpg");
	background-size: cover;
	max-height: var(--container-height);
	width: 100%;
	display: block;
	margin-top: var(--container-margin);
	/*overflow-y: scroll;*/
	overflow-y: hidden;
}

.timeline-container {
	max-width: var(--timeline-container-width);
	background-color: var(--timeline-container-bg-color);
	margin: 0 auto;
	padding: 0rem 2rem;
	font-family: Arial, Helvetica, sans-serif;
	line-height: 1.5em;
}

.timeline-item {
	display: flex;
	flex-direction: row;
	background-color: var(--timeline-item-bg-color);
	opacity: 0.95;
	position:relative;
}

.timeline-item::before {
	content: attr(data-year);
	flex-basis: 8rem;
	min-width:8rem;
	font-size: 20px;
	font-weight: 800;
	color: var(--timeline-year-color);
	justify-content: center;
	align-items: center;
	text-align: center;
	background-size: 100%;
	padding-top: 2.5rem;
	/*background: linear-gradient(90deg, rgba(255, 255, 255, 1) calc(50% - 1px), rgba(0, 0, 0, 1) calc(50%), rgba(255, 255, 255, 1) calc(50% + 1px));*/
	background: var(--milestone);
	background-repeat: no-repeat;
	/*opacity: 0.9;*/
}

.brown-milestone .timeline-item::before {
	background: var(--brown-milestone);
}

.timeline-item::after {
	content: "";
	width: 80px;
	height: 100%;
	background: var(--the-way);
	position: absolute;
	left: 0;
	top:5px;
	z-index: -1;
}

.timeline-container .timeline-item:last-child:after {
	display: none;
}

.timeline-item:focus::before,
.timeline-item:hover::before {
	color: var(--timeline-item-hover-bg-color);
}

.timeline-content {
	margin-bottom: 2rem;
	background-color: var(--timeline-content-bg-color);
	padding: 2rem;
	flex-grow: 1;
	flex-shrink: 1;
	flex-basis: 100%;
	font-size: 18px;
	border-radius: 0 2rem 2rem 2rem;
}

.timeline-item:focus .timeline-content,
.timeline-item:hover .timeline-content   {
	background-color: var(--timeline-content-hover-bg-color);
}

.timeline-item:focus .timeline-content p,
.timeline-item:hover .timeline-content p {
	zoom: var(--timeline-content-hover-zoom);
}

.timeline-content h2 {
	margin-top: 0rem;
	display: none;
} 

.timeline-content p {
  font-size:18px;
}

.timeline-content p.caption {
  font-size:16px;
  line-height:18px;
  font-style: italic;
}

.timeline-content p.caption::before {
  content:"Image caption: "
}

.timeline-content .img-right,
.timeline-content .img-left {
	display: flex;
	flex-direction: row;
}

.timeline-content .img-right .content,
.timeline-content .img-left .content {
	flex-grow: 1;
	flex-shrink: 1;
	flex-basis: 75%;
}

.timeline-content .img-right .content {
  padding-right:1rem;
}

.timeline-content .img-left .content {
  padding-left:1rem;
}

.timeline-content .img-right .image,
.timeline-content .img-left .image {
	flex-grow: 1;
	flex-shrink: 1;
	flex-basis: 25%;
	text-align: center;
}

.timeline-content .img-right .image img,
.timeline-content .img-left .image img {
	width: 100%;
	
}

.timeline-content .img-right .image .caption,
.timeline-content .img-left .image .caption {
	font-size: 12px;
	line-height: 1.2rem;
}

.timeline-content .img-fw {
  margin: -2rem -2rem 2rem -2rem;
}

.timeline-content .mid {
  margin-top:2rem;
}

.timeline-content .img-fw img.fw {
  width:100%;
  border-radius:0 2rem 0 0;
}

.timeline-content .img-fw.mid img.fw {
  border-radius:0;
}

img.round {
  border-radius: 50%;
}

img.rounded {
  border-radius: 1rem;
}

@media screen and (max-width:48em) {

  .timeline-content .img-right {
    flex-direction:column-reverse;
  }
  .timeline-content .img-left {
    flex-direction:column;
  }

  .timeline-content .content,
  .timeline-content .content
  {
    padding: 0;
  }

  .timeline-content .image {
    margin:-2rem -2rem 2rem -2rem;
  }

  .timeline-content .image img.round,
  .timeline-content .image img.rounded {
    border-radius:0 2rem 0 0;
  }
}

/* 
alternate with arrow left
- add class with-arrow to timeline-container in html
- remove class or comment out everything between start and end to remove
*/
/*start*/
.timeline-container.with-arrow .timeline-content {
  margin-left:1rem;
  position:relative;
  margin-top:2rem;
}

.timeline-container.with-arrow .timeline-content::before {
  content:"";
  width: 0;
  height: 0;
  border-top: 0px solid transparent;
  border-right: 1rem solid var(--timeline-content-bg-color);
  border-bottom: 1rem solid transparent;
  position: absolute;
  left: -1rem;
  top: 0;
}

.timeline-container.with-arrow .timeline-item:focus .timeline-content::before,
.timeline-container.with-arrow .timeline-item:hover .timeline-content::before {
  border-right:1rem solid var(--timeline-content-hover-bg-color);
}
/*end*/