.hamburg { 
   display: block;
   background: #555; width: 75px; height: 50px; 
   position: relative; 
   margin-left: auto; margin-right: auto;
   border-radius: 4px; 
   transition: border-radius .5s;
}

.line { 
   position: absolute; 
   left:10px;
   height: 4px; width: 55px; 
   background: #fff; border-radius: 2px;
   display: block; 
   transition: 0.5s; 
   transform-origin: center; 
}
.line:nth-child(1) { top: 12px; }
.line:nth-child(2) { top: 24px; }
.line:nth-child(3) { top: 36px; }

.topmenu {
    height: auto;
    max-height:0;
    overflow: hidden;
    transition: all 3s;
}

.hamburg.checked .line:nth-child(1){
   transform: translateY(12px) rotate(-45deg);
}

.hamburg.checked .line:nth-child(2){
   opacity:0;
}

.hamburg.checked .line:nth-child(3){
   transform: translateY(-12px) rotate(45deg);
}
.hamburg.checked + .topmenu{
    max-height: 1000px;	
}
/*
#profil {
	float:left;
	
}

*/