/*	Allgemeines	*/


html,body {height:100%}
*{margin:0;padding:0;text-align:center
}
li {list-style-type: none}
section {height:100%}
h1,h2,td,li {font-family:Arial, Helvetica, sans-serif}
h1 {font-size:140px;padding-top:180px;color:white}
h2 {
	font-size:60px;
}
hr {
	width:300px;
	height:10px;
	margin-right:auto;
	margin-left:auto;
	background-color:#61725A;
	border:0;
	margin-bottom:30px;
	margin-top:30px
}


/*	Kopfleiste	*/


header {
	width: 100%;
	height: 90px;
	position: fixed;
	top: 0;
	left: 0;
	background:white;
	z-index: 1;
	box-shadow: 0px 3px 5px rgb(180,180,180)
}
header nav {
	float:right;
	margin-top:35px;
	margin-right:30px
}
header nav ul li {
	float:left;
	margin-right:25px;
	font-size:20px;
	color:#666666;
	transition:all 150ms
}
header nav ul li a {
	text-decoration:none;
	color:#666666
}
header nav ul li:hover {
	padding-top:5px;
}
header nav ul li a:visited {
	color:#666666
}
header img {
	width: auto;
	float: left;
	margin-left:20px;
	margin-right:auto;
	margin-top:15px;
	margin-bottom:auto
}
header img {
	height: 70px;
	transition:all 150ms
}
header img:hover {
	padding-top:5px;
}


/*	Oberer Teil und Navigation Technik (auch teilweise Geschichte)	*/


#Abschnitt1 {
	padding-top:90px;
	background-image:url('../Bilddateien/Helix.jpg');
	background-position:center center;
	background-size:cover;
	background-attachment:fixed
}	
#Technik {
	padding-top:80px;
}
#Geschichte {
	padding-top:80px;
}
#Techniknav, #Geschichtenav {
	text-align: center;
	margin:auto;
	padding-top:50px;
	height:500px
}
#Geschichtenav {
	height:250px;
	padding-top:100px
}
#Techniknav td,#Geschichtenav td {
	width: 500px;
	background-color:#666666;
	font-size: 60px;
	color:white;
	padding-bottom: 50px;
	padding-top: 50px;
	height:140px
}
#Allgemein {
	background-image:url('../Bilddateien/menue.jpg');
	background-size:cover;
	background-position:center center;
	transition: all 300ms
}
#Allgemein:hover {
	background-image:url('../Bilddateien/Gronalund.jpg');
	font-size:0px
}
#Planung {
	background-image:url('../Bilddateien/menue.jpg');
	background-size:cover;
	background-position:center center;
	transition: all 300ms
}
#Planung:hover {
	background-image:url('../Bilddateien/Entwicklung.png');
	font-size:0px
}
#Elemente {
	background-image:url('../Bilddateien/menue.jpg');
	background-size:cover;
	background-position:center center;
	transition: all 300ms
}
#Elemente:hover {
	background-image:url('../Bilddateien/Elemente.jpg');
	font-size:0px
}
#Antriebsarten {
	background-image:url('../Bilddateien/menue.jpg');
	background-size:cover;
	background-position:center center;
	transition: all 300ms
}
#Antriebsarten:hover {
	background-image:url('../Bilddateien/Anstriebe.png');
	font-size:0px
}


/*	Fußzeile	*/


footer {
	background-color:gray;
	width:100%;
	height:80px;
	}
footer ul li {
	float:right;
	margin: 30px 50px auto auto;
	font-size:20px
}


/*	Navigation Geschichte	*/


#früher {
	background-image:url('../Bilddateien/menue.jpg');
	background-size:cover;
	background-position:center center;
	transition: all 300ms
}
#früher:hover {
	background-image:url('../Bilddateien/Rutschebanen.jpg');
	font-size:0px
}
#heute {
	background-image:url('../Bilddateien/menue.jpg');
	background-size:cover;
	background-position:center center;
	transition: all 300ms
}
#heute:hover {
	background-image:url('../Bilddateien/20190922_133117.jpg');
	font-size:0px
}
#zukunft {
	background-image:url('../Bilddateien/menue.jpg');
	background-size:cover;
	background-position:center center;
	transition: all 300ms
}
#zukunft:hover {
	background-image:url('../Bilddateien/Fragezeichen.jpg');
	font-size:0px
}