a:link { font-family:Arial,Helvetica; color:red; text-decoration:none;  }
a:visited { font-family:Arial,Helvetica; color:yellow; text-decoration:none; }
a:active { font-family:Arial,Helvetica; color:magenta; text-decoration:none; }

a:hover.eins { font-family:Arial,Helvetica; text-decoration: none; color: magenta; background-color: yellow; }