html {
  text-align: center;
}
body {
  margin: 0;
  font-family: Arial, sans-serif;
  font-size: 150%;
  color: white;
  background-color: black;
  line-height: 1.5;
}

A:visited  { text-decoration:none; font-weight:bold; color: blue; }
A:link     { text-decoration:none; font-weight:bold; color: blue; }
A:active   { text-decoration:none; font-weight:bold; color: red; }
A:hover    { text-decoration:none; font-weight:bold; color: red; }

.main {
  padding-left: 16px;
  padding-right: 16px;
}

.topnav {
  overflow: hidden;
  background-color: black;
  .login {
	color: grey;
  }
}
.topnav a {
  float: left;
  display: block;
  color: white;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  font-size: 22px;
}
.topnav a:hover {
  background-color: red;
  color: white;
}
.topnav a.active {
  background-color: blue;
  color: white;
}
.topnav .icon {
  display: none;
}
@media screen and (max-width: 600px) {
  .topnav a:not(:first-child) {display: none;}
  .topnav a.icon {
    float: right;
    display: block;
  }
}
@media screen and (max-width: 600px) {
  .topnav.responsive {position: relative;}
  .topnav.responsive .icon {
    position: absolute;
    right: 0;
    top: 0;
  }
  .topnav.responsive a {
    float: none;
    display: block;
    text-align: left;
  }
}
.container {
  display: inline-block;
  cursor: pointer;
}
.bar1, .bar2, .bar3 {
  width: 28px;
  height: 3px;
  background-color: white;
  margin: 4px 0 0;
  transition: 0.4s;
}
.change .bar1 {
  transform: translate(0, 7px) rotate(-45deg);
}
.change .bar2 {
  opacity: 0;
}
.change .bar3 {
  transform: translate(0, -7px) rotate(45deg);
}
.member {
  margin: 10px 10px;
  img {
    margin: 0px;	
    border-radius: 4px;
	height: 200px;
	border: 1px solid white;
  }
}
.center {
  margin-left: auto;
  margin-right: auto;
}
.hintergrund {
  position: absolute;
  opacity: 0.30;
  left: 0; 
  right: 0; 
  max-width: 100%;
  height: auto;
}
.bild {
  max-width: 100%;
  height: auto;
}
.rand {
  border: 1px solid white;
}
.ba img {
  margin: 5px 10px 5px 0;
  display: block;
  border: 2px solid white;
  width: auto;
  height: 350px;
}
.bo img:hover {
  filter: sepia(0%);
}
.bo img {
  margin: 5px 10px 5px 0;
  display: block;
  border: 2px solid gray;
  width: auto;
  height: 350px;
  filter: sepia(100%);
}
.owner img {
  margin: 5px 10px 5px 0;
  display: block;
  border: 2px solid white;
  width: auto;
  height: 350px;
}
.galerie input[type=button] {
  position:absolute;
  height:100px;
  width:100px;
  color:grey;
  background: transparent;
  font-size: 2em;
  margin:10px;
  border: 3px solid grey;
  border-radius: 100%;
  cursor: pointer;
}