header {
	height: 50px;
	font-size: 40px;
	padding: 5px 0px;
}

footer {
	position: absolute;
	left:0px;
	right:0px;
	bottom: 0px;
	height: 20px;
	background-color: #FFF;
}

li {
	text-align: center;
	z-index: 3;
	font-size:20px;
	height: 40px;
	padding: 10px 0px;
}

.d {
	position: absolute;
	width: 0;
	height: 0;
	border-left: 20px solid transparent;
	border-right: 20px solid transparent;	
	z-index: 2;
}

.do {
	margin-top: 1px;
	border-top: 40px solid #FFF;
	top: 50px;
}

.du {
	bottom: 20px;
	margin-bottom: 1px;
	border-bottom: 40px solid #FFF;
}

#D1 {
	left:calc(100%/3 - 10px);
}

#D2 {
	left:calc(200% /3 - 30px);
}

#D3 {
	left: calc(100%/3 - 30px);
}

#D4 {
	left: calc(200%/3 - 10px);
}

#Mensch {
	margin-bottom: 1px;
	bottom: 20px;
	width: calc(100% / 3 - 10px);
	left: 0px;
}

#Design {
	margin-top: 1px;
	top: 50px;
	width: calc(100% / 3 - 20px);
	left: calc(100% / 3 + 10px);
}

#Blog {
	margin-bottom: 1px;
	bottom: 20px;
	width: calc(100% / 3 - 10px);
	right: 0px
}

#Hintergrund {
	position: absolute;
	top: 0px;
	right: 0px;
	left: 0px;
	bottom: 0px;
	background-image: url("Mobile.jpg");
}

#Text {
	top: 101px;
	z-index: 1;
	padding: 10px;
	bottom: 101px;
	width: calc(100% - 100px);
	left: 50px;
}