.content-flex {
	display: flex;
	flex-wrap: nowrap;
	margin: 0;
	padding: 0;
}
.timeline {
	background-image: url('../Img/Zeitstrahl.png');
	background-position: 0.75vh 0;
	background-repeat: no-repeat;
	background-size: auto 100%;
	height: 75vh;
	left: 5vw;
	overflow-y: auto;
	position: -webkit-sticky;
	position: sticky;
	scrollbar-width: thin;
	top: 15vh;
	width: 8vw;
}
.timeline::-webkit-scrollbar {
	background-color: #fff;
	width: 12px;
}
.timeline::-webkit-scrollbar-thumb {background-color: #1ca679;}
.year-link {
	display: block;
	text-decoration: none;
}
.graduation-hat {
	display: inline-block;
	margin-top: 2vh;
	position: relative;
	width: 5vh;
}
#graduation-hat-first {margin-top: 4vh;}
.year-green,
.year-blue { 
	display: inline-block;
	font-weight: bold;
	left: -1vh;
	position: relative;
	top: -1vh;
}
.year-green {color: #1ca679;}
.year-blue {color: #215276;}


.abs-section-pddg {
	display: inline-block;
	margin-left: 9%;
	position: relative;
	width: 85%;
}

.abs-img-flexbox {
	display: flex;
	flex-wrap: wrap;
}
.abs-img-pddg {
	margin: 0 4vh 4vh 0;
	width: 30%;
}	
.abs-img {width: 100%;}

.abs-img-text-pddg {
	align-items: center;
	background-color: #1ca679;
	display: flex;
	height: 6vh;
	margin: 0;
	position: relative;
	top: -1vh;
	width: 100%;
}
.abs-img-logo {
	display: inline-block;
	height: 5vh;
	margin: auto 2vh;
}
.abs-img-text {
	color: #fff;
	display: inline-block;
	font-size: 2.5vh;
	margin: auto 2vh;
}


.abs-img-fullscreen-pddg {
	align-items: center;
	-webkit-animation-name: abs-img-fullscreen-animation;
	-webkit-animation-duration: .8s;
	animation-name: abs-img-fullscreen-animation;
	animation-duration: .8s;
	bottom: 5vh;
	display: flex;
	float: right;
	height: 80vh;
	margin: auto;
	position: -webkit-sticky;
	position: sticky;
	right: 4.5vw;
	width: 80vw;
}
.abs-img-fullscreen-pddg::before {		/*transparent background of .abs-img-fullscreen-pddg*/
	background-color: #000;
	bottom: 0;
	content: "";
	left: 0;
	opacity: .85;
	position: absolute;
	right: 0;
    top: 0;
	z-index: -1;
}
@-webkit-keyframes abs-img-fullscreen-animation {
  from {-webkit-transform:scale(0)} 
  to {-webkit-transform:scale(1)}
}
@keyframes abs-img-fullscreen-animation {
  from {transform:scale(0)} 
  to {transform:scale(1)}
}
.abs-img-fullscreen {
	display: block;
	margin: auto;
	max-height: 80vh;
	max-width: 80vw;
}
.abs-img-fullscreen-bttn-close {
	color: #fff;
	cursor: pointer;
	font-size: 6vh;
	position: absolute;
	right: 3vh;
	top: 1vh;
}
.abs-img-fullscreen-bttn-prev,
.abs-img-fullscreen-bttn-next {
	color: #fff;
	cursor: pointer;
	font-size: 4vh;
	position: absolute;
}
.abs-img-fullscreen-bttn-prev {left: 3vh;}
.abs-img-fullscreen-bttn-next {right: 3vh;}


@media screen and (orientation: portrait) {
	h1,
	h2 {text-align: center;}
	#content-pddg {font-size: 2vh;}
	.content-flex {flex-wrap: wrap}
	
	.timeline {
		background-color: #fff;
		background-position: 1.5vh 0;
		height: 90vw;
		margin-bottom: -70%;
		padding-left: 0.5vh;
		top: 1vh;
		transform-origin: 0 0;
		transform: rotate(-90deg) translatex(-12vh);
		width: 12vh;
		z-index: 1;
	}
	.timeline::-webkit-scrollbar {width: 6px;}
	
	.abs-section-pddg {
		margin-left: 0;
		top: 0;
		width: 100%;
	}
	.abs-img-pddg {
		margin: 0 auto 3.5%;
		width: 45%;
	}
	.abs-img-text-pddg {
		height: 3vh;
		top: -1.2vh;
	}
	.abs-img-logo {
		height: 2vh;
		margin: auto 1vh;
	}
	.abs-img-text {
		font-size: 1.2vh;
		margin: auto 1vh;
	}
	
	.abs-img-fullscreen-pddg {
		bottom: 10vh;
		float: none;
		height: 20vh;
		right: 0;
		width: 80vw;
	}
	.abs-img-fullscreen-bttn-close {
		font-size: 3vh;
		right: 1vh;
		top: .5vh;
	}
	.abs-img-fullscreen-bttn-prev,
	.abs-img-fullscreen-bttn-next {
		font-size: 2vh;
	}
	.abs-img-fullscreen-bttn-prev {left: 1vh;}
	.abs-img-fullscreen-bttn-next {right: 1vh;}
}

@media screen and (orientation: landscape) and (max-width: 825px) {
	h1 {
		font-size: 4.5vw;
		margin-bottom: 0.5vw;
	}
	#content-pddg {font-size: 1.2vw;}
	
	.timeline {width: 10vw;}
	.timeline::-webkit-scrollbar {width: 5px;}
	.graduation-hat {
		left: -0.5vw;
		width: 4vw;
	}
	.year-green,
	.year-blue {font-size: 1.6vw;}
	
	.abs-img-text {font-size: 1.3vw;}
	
	#footer-content-pddg {font-size: 1.1vw;}
}