a:link { text-decoration:none; font-weight:bold; color:black; }
a:visited { text-decoration:none; font-weight:bold; color:#800000; }
a:hover { text-decoration:none; font-weight:bold; background-color:orange; }
.unten {vertical-align:bottom;}
.mitte {vertical-align:middle;}
.oben  {vertical-align:top;}