* {
	margin: 0;
	padding: 0;
}

html {
	overflow-x: hidden;
}

.menubutton {
	position: fixed;
	text-align: left;
	font-size: 1.8vw;
	color: black;
	left: 0.7%;
	top: 2%;
	z-index: 11;
	cursor: pointer;
}

.modalmenu {
	display: none;
	position: fixed;
	z-index: 11;
	left: 0;
	top: 0;
	width: 100%;
	height: 100%;
	overflow: hidden;
	background-color: rgb(0,0,0);
	background-color: rgba(0,0,0,0.6);
}

.openingbutton {
	position: fixed;
	text-align: left;
	font-size: 1.5vw;
	color: #34b7f1;
	opacity: 0.5;
	left: 0.7%;
	top: 8%;
	z-index: 9;
	cursor: pointer;
}

.arrowupbutton {
	display: none;
	position: fixed;
	text-align: left;
	font-size: 1.5vw;
	color: black;
	opacity: 0.3;
	left: 0.7%;
	top: 13%;
	z-index: 9;
	cursor: pointer;
}

.arrowdownbutton {
	display: none;
	position: fixed;
	text-align: left;
	font-size: 1.5vw;
	color: black;
	opacity: 0.3;
	left: 0.7%;
	top: 18%;
	z-index: 9;
	cursor: pointer;
}

.whappbutton {
	position: fixed;
	text-align: left;
	font-size: 1.6vw;
	color: #25d366;
	opacity: 1.0;
	left: 0.8%;
	top: 13%;
	z-index: 9;
	cursor: pointer;
}

.calendarbutton {
	position: fixed;
	text-align: left;
	font-size: 1.4vw;
	color: red;
	opacity: 0.5;
	left: 0.85%;
	top: 18%;
	z-index: 9;
	cursor: pointer;
}

.announcementbutton {
	position: fixed;
	text-align: left;
	font-size: 1.4vw;
	color: red;
	opacity: 0.5;
	left: 1.2%;
	top: 28%;
	z-index: 9;
	cursor: pointer;
}

.overlay {
	height: 100%;
	width: 0;
	position: fixed;
	z-index: 12;
	left: 0;
	top: 0;
	background-color: rgb(0,0,0);
	background-color: rgba(0,0,0,0.9);
	overflow-x: hidden;
	transition: 0.5s;
	-moz-border-radius: 10px;
	-webkit-border-radius: 10px;  
	border-radius: 0px 10px 10px 0px;
}

div.overlay img {
	position: absolute;
	width: 100%;
	-webkit-filter: invert(1);
	filter: invert(1);
	bottom: 0;
}

.overlay-content {
	display: none;
	position: relative;
	top: 10%;
	width: 100%;
	text-align: center;
}

.overlay a {
	padding: 10px;
	text-decoration: none;
	color: white;
	transition: 0.3s;
}

.overlay a:hover, .overlay a:focus {
	color: #28B463;
}

.overlay .closebtn {
	position: absolute;
	font-size: 2.8vw;
	font-weight: bold;
	color: white;
	left: 0;
	top: 0;
}

.menubutton:hover, .arrowupbutton:hover, .arrowdownbutton:hover {
	opacity: 0.3;
	color: #28B463;
}

.openingbutton:hover, .whappbutton:hover, .calendarbutton:hover, .announcementbutton:hover {
	opacity: 0.3;
}

section {
	position: relative;
	width: 100%;
	height: 100%;
}

section:after {
	position: absolute;
	bottom: 0;
	left: 0;
	content: '';
	width: 100%;
	height: 80%;
}