a:hover {
	border: solid 1px black; 
	border-radius: 10px;
	background: rgba(0,192,255,255);
	padding: 7px;
	color: rgba(255,255,0,255);
}
.mainHeader { 
    width: 70%; 
    background: rgba(240,255,240,255);
    padding: 10px;
    border: solid 1px black; 
	border-radius: 10px;
	margin:0 auto;
   }
.divInnerHead { 
	font-family: fantasy;
	font-weight: 100;
	font-size:25;
    width: 40%; 
    background: rgba(230,230,255,255);
    padding: 10px;
    border: solid 1px black; 
	border-radius: 10px;
	margin:left;
   }

.divInnerText{
	font-family: Georgia;
	font-weight: 100;
	font-size:25;
    width: 98%; 
    background: rgba(255,255,230,255);
    padding: 10px;
    border: solid 1px black; 
	border-radius: 10px;
	margin:left;
	}
.divOuter { 
    width: 85%; 
    background: rgba(255,230,230,255);
    padding: 10px;
    border: solid 2px black; 
	border-radius: 10px;
	margin:0 auto;
   }
.head1 { 
	font-family: Georgia;
	font-weight: 200;
	font-size:25;
    width: 80%; 
    background: rgba(255,230,255,255);
    padding: 10px;
    border: solid 2px black; 
	border-radius: 10px;
	margin:0 auto;
   }
.head0 { 
	font-family: fantasy;
	font-weight: 100;
	font-size:30;
    width: 70%; 
    background: rgba(200,255,255,255);
    padding: 10px;
    border: solid 2px black; 
	border-radius: 10px;
	margin:0 auto;
   }
.tabs { 
	width: 100%; 
	padding: 0px; 
	margin: 0 auto; 
}
.tabs>input { 
	display: none; 
}
.tabs>div {
    display: none;
}
.tabs>label {
    display: inline-block;
    padding: 10px;
    margin: 0 -5px -1px 0;
    text-align: center; 
    background: rgba(255,230,230,255);
    border: solid 2px black; 
	border-radius: 10px;
    cursor: pointer;
}
.tabs>input:checked + label {
	 background: rgba(240,255,240,255);
}
.tabs>label:hover{
	font-family: Georgia;
	font-weight: 200;
    color: rgba(255,255,0,255);
    background: rgba(0,192,255,255);
}

#tab_1:checked ~ #lab1,
#tab_2:checked ~ #lab2,
#tab_3:checked ~ #lab3,
#tab_4:checked ~ #Ekzamen { display: block; }