#fehlt {
   color: #ff0000;
}

fieldset {
   width: 46%;
}

label.links {
   float: left;
   text-align: right;
   width: 12em;
   margin-right: 0.3em;
}

input.rechts {
   float: none;
   width: auto;
   clear: none;
   margin-left: 0.3em;
}

input:focus {
   background: #aaaaff;
   color: #000000;
}

h1 {
   text-align: center;
}

#zucht {
  float: right;
  margin-right: 0.3em;
}

#mast {
  float: left;
}

#senden {
  margin-top: 1em;
}