html {
  margin: 0;
  padding: 0;
  background-image: url(TronGrid_Carikci.jpg);
  width: 100%;
  height: 100%;
  background-color: transparent;
  color: #42cadc;
  background-attachment: fixed;
}
body {
  font-family: sans-serif;
}
#suche {
  border: 2px solid #999999;
  width: 10em;
  font-size: 1.2em;
}
#suche:focus {
  font-size: 1.5em;
  width: 50%;
}
h1 {
  position: relative;
  font-size: 300%;
  font-family: Georgia,'Comic Sans',serif;
  font-weight: normal;
  margin-bottom: 1em;
}
h2 {
  position: relative;
  font-size: 225%;
  font-family: Georgia,'Comic Sans',serif;
  font-weight: normal;
  margin-bottom: 1em;
}
h3 {
  position: relative;
  font-size: 150%;
  font-family: Georgia,'Comic Sans',serif;
  font-weight: normal;
  margin-bottom: 1em;
}
#hintergrund {
  position: absolute;
  width: 100%;
  height: 100%;
  z-index: 2;
}
#inhalt {
  padding: 20px 100px 30px 200px;
  overflow: auto;
  z-index: 1;
}
.topnav {
  overflow: hidden;
  background-color: transparent;
  color: #42cadc;
}
.topnav a {
  padding: 14px 16px;
  color: #42cadc;
  float: left;
  text-decoration: none;
  display: block;
  font-size: 17px;
  text-align: center;
}
.topnav a:hover {
  background-color: #35a9cd;
  color: black;
}
.topnav a.active {
  background-color: #35a9cd;
  color: black;
}
.topnav input[type="text"] {
  border:  none;
  padding: 6px;
  float: right;
  margin-top: 8px;
  margin-right: 16px;
  font-size: 17px;
}