body {
	height: 100% ;
	margin: 0 ;
	padding: 0 ;
	background: #FFF ;
	font-family: Arial, Tahoma, Geneva, sans-serif ;	
}
h1 {
	font-size: 2em ;
	font-weight: bold ;
	color: #FFF ;
	font-variant: small-caps ;
	text-shadow: #000 0px 0px 6px ;
}
h2 {
	font-size: 1.4em ;
	font-weight: 200 ;
	color: #FFF ;
	font-variant: small-caps ;
	letter-spacing: 0.05em ;
	text-shadow: #000 0px 0px 6px ;
}
h3 {
	padding: 0 ;
	font-size: 1em ;
	font-weight: lighter ;
	font-variant: small-caps ;
	letter-spacing: 0.06em ;
	line-height: 1.5 ;
	color: #000 ;
}
h4 {
	padding: 0 ;
	font-size: 1em ;
	font-weight: 200 ;
	font-variant: small-caps ;
	letter-spacing: 0.06em ;
	color: #000 ;
}
#orange {
	color: #F37430 ;
}
span.small {
	font-size: 0.8em ;
}
.bordera {
	position: fixed ;
	margin-top: 0px ;
	width: 100% ;
	height: 30px ;
	background-color: #2973CC ;
	z-index: 5
}
.borderb {
	position: relative;
	margin: 0 auto ;
	width: 80% ;
	height: 1px ;
	background-color: #FFF ;
	opacity: 0.3 ;
	z-index: 5
}
.top {
	position: fixed ;
	margin-top: 30px ;
	width: 100% ;
	height: 86px ;
	background-color: #FFF ;
	z-index: 5 ;
	box-shadow: 0px 1px 4px #AAAAAA ;
}
.navi {
	display: none ;
}
.navib {
	position: fixed ;
	float: left ;
	margin-top: 34px ;
	margin-left: 30% ;
	padding-top: 0 ;
	color: #424143 ;
}
.navib a {
	color: #424143 ;
	text-decoration: none ;
}
.navib a:hover {
	color: #2973CC ;
	text-decoration: none ;
	transition: 1s ;
}

.dropbtn {
    background-color: #FFF ;
    color: #424143 ;
    border: none ;
	font-size: 1.2em ;
}
.dropdown {
    position: relative ;
    display: inline-block ;
	border: none ;
}
.dropdown-content {
    display: none;
    position: absolute;
    background-color: #FFF ;
    min-width: 260px ;
	padding-top: 10% ;
	padding-left: 10% ;
	opacity: 0.98 ;
	box-shadow: 0px 1px 4px #AAA ;
	margin: 0px -5px ;
	z-index: 10 ;
}
.dropdown-content a {
    color: #424143 ;
    display: block;
	text-decoration: none ;
	font-size: 1.2em ;
}
.dropdown-content a:hover {
	background-color: white;
}
.dropdown:hover .dropdown-content {
	display: block;
}
.dropdown:hover .dropbtn {
	background-color: #FFF ;
}
.dropdown-content-m {
    display: none;
    position: absolute;
    background-color: #FFF ;
    min-width: 260px ;
	padding-top: 2% ;
	padding-left: 2% ;
	padding-bottom: 2% ;
	opacity: 0.98 ;
	box-shadow: 0px 1px 4px #AAA ;
	margin: 0px -5px ;
	z-index: 10 ;
	font-size: 0.8em ;
}
.dropdown-content-m a {
    color: #424143 ;
    display: block;
	text-decoration: none ;
}
.dropdown-content-m a:hover {
	background-color: white;
}
.dropdown:hover .dropdown-content-m {
	display: block;
}
.logo {
	position: fixed ;
	background-image: url("./images/ruhr3d-logo.png") ;
	background-size: cover ;
	width: 190px ;
	height: 48px ;
	margin-top: 50px ;
	margin-left: 10% ;
	z-index: 9 ;
}
.headline {
	position: absolute ;
	margin-top: 86px ;
	width: 100% ;
	height: 390px ;
	background-image: url("./images/startseite.jpg") ;
	background-size: cover ;
	color: #FFF ;
	z-index: 0 ;
}
.hone {
	position: relative ;
	margin: 0 auto ;
	padding-top: 40px ;
	width: 72% ;
	height: 50px ;
}
.htwo {
	position: relative ;
	margin: 0 auto ;
	padding-top: 20px ;
	width: 100% ;
	height: 50px ;
	text-align: center ;
}
.buttonbox {
	position: relative ;
	margin: 0 auto ;
	padding-top: 60px ;
	width: 80% ;
	height: 50px ;
	text-align: center ;
	font-size: 1em ;
	font-weight: 200 ;
	letter-spacing: 0.03em;
	color: #FFF ;
}
.box1, .box2 {
	float: left ;
    width: 50%;
	text-shadow: #000 0px 0px 6px ;
}
.button1 a {
	padding-left: 1.7em ;
	padding-right: 1.7em ;
	padding-top: 0.7em ;
	padding-bottom: 0.7em ;
	border: 2px solid rgba(41,115,204,1) ;
	border-radius: 10px;
	background: rgba(0,0,0,0.3) ;
	font-size: 1.2em ;
	color: #2973CC ;
	text-decoration: none ;
}
.button1 a:hover {
	border: 2px solid rgba(41,115,204,0.2) ;
	background: rgba(0,0,0,0.6) ;
	transition: 0.5s;
	letter-spacing: 0.05em;
}
.button2 a {
	padding-left: 1.7em ;
	padding-right: 1.7em ;
	padding-top: 0.7em ;
	padding-bottom: 0.7em ;
	border: 2px solid rgba(243,116,48,1) ;
	border-radius: 10px;
	background: rgba(0,0,0,0.3) ;
	font-size: 1.2em ;
	color: #F37430 ;
	text-decoration: none ;
}
.button2 a:hover {
	border: 2px solid rgba(243,116,48,0.2) ;
	background: rgba(0,0,0,0.6) ;
	transition: 0.5s;
	letter-spacing: 0.05em;
}
.lt {
	float: left ;
	margin-top: 4px ;
	margin-left: 10% ;
	width: 100% ;
	font-size: 0.8em ;
}
.lt a {
	color: #FFF ;
	text-decoration: underline #FFF ;	
}
.lt a:hover{
	color: #000 ;
	text-decoration: underline #000 ;
}
.txt {
	position: absolute ;
	margin-top: 506px ;
	margin-left: 12% ;
	width: 76% ;
	height: 390px ;
}
.box3 {
	float: left ;
	margin-top: 2% ;
}
.box4 {
	line-height: 1.5 ;
	width: 86% ;
	margin-left: 7% ;
	border-top: 1px solid rgba(0,0,0,0.1) ;
}
.centertxt {
	text-align: center;
}
.stxt {
	font-size: 0.9em ;
	letter-spacing: 0.05em ;
	font-weight: lighter ;
	color: #4b4647 ;
}
.nohover {
	color: #424143 ;
	text-decoration: underline #FFFFFF ;
}
.nohover:hover {
	color: #424143 ;
	text-decoration: underline #FFFFFF ;
}
footer.f {
	position: fixed ;
	bottom: 0 ;
    width: 100% ;
    background: #000 ;
    height: 2.4em ;
	font-size: 0.8em ;
	color: #FFF ;
	opacity: 0.9 ;
	text-align: center ;
}
a.footer {
	color: #FFF ;
}
footer.fb {
	position: fixed ;
	bottom: 0 ;
	width: 100% ;
	background: #000 ;
	height: 2.4em ;
	font-size: 0.8em ;
	color: #FFF ;
	opacity: 0.9 ;
	text-align: center ;
}

@media screen and (max-width: 960px)  {
	h1 {
		font-size: 1.6em ;
		font-weight: bold ;
		color: #FFF ;
		font-variant: small-caps ;
		text-shadow: #000 0px 0px 6px ;
	}
	h2 {
		font-size: 1em ;
		font-weight: 200 ;
		color: #FFF ;
		font-variant: small-caps ;
		letter-spacing: 0.05em ;
		text-shadow: #000 0px 0px 6px ;
	}
	.logo {
		position: fixed ;
		background-image: url("./images/logo_pur.png") ;
		background-size: cover ;
		width: 57px ;
		height: 48px ;
		margin-top: 50px ;
		margin-left: 10% ;
	}
	.navib {
		display: none ;
	}
	.navi {
		display: block ;
		margin-top: 30px ;
		margin-left: 30% ;
		width: 100% ;
		font-size: 1.4em ;
		font-weight: 200em ;
		color: #424143 ;
	}
}
@media screen and (max-width: 400px)  {
	h1 {
		font-size: 1.2em ;
		font-weight: bold ;
		color: #FFF ;
		font-variant: small-caps ;
		text-shadow: #000 0px 0px 6px ;
	}
	h2 {
		font-size: 0.9em ;
		font-weight: bold ;
		color: #FFF ;
		font-variant: small-caps ;
		letter-spacing: 0.05em ;
		text-shadow: #000 0px 0px 6px ;
	}
	.buttonbox {
		position: relative ;
		margin: 0 auto ;
		padding-top: 10px ;
		width: 100% ;
		text-align: center ;
		font-size: 0.8em ;
		font-weight: 200 ;
		letter-spacing: 0.03em;
		color: #FFF ;
	}	
	.box1, .box2 {
		float: left ;
		width: 100%;
		height: 100px ;
		text-shadow: #000 0px 0px 6px ;
		font-weight: bold ;
	}
	h3 {
		font-weight: bold ;
	}
	h4 {
		font-weight: bold ;
	}
	.box4 {
		font-weight: bold ;
	}
	.navi {
		font-size: 1.2em ;
		font-weight: bold ;
	}
}