a:focus {
    outline: 0px solid white;
}

a#impressum {
    text-decoration: none;
    color: #000;
}

a#impressum:hover {
    text-decoration: underline;
}

a {
    color: #000;
    text-decoration: none;
}

a:hover {
    color: #000;
    text-decoration: underline;
}

a.extern:link {
    background: url(images/extern.gif) no-repeat 100% 0;
    padding: 0 20px 0 0;
}

a.extern:hover, a.extern:active, a.extern:focus {
    background: url(images/extern.gif) no-repeat 100% -200px;
    padding: 0 20px 0 0;
}

a.extern:visited {
    background: url(images/extern.gif) no-repeat 100% -100px;
    padding: 0 20px 0 0;
}

a.mail:link {
    background: url(images/mail.gif) no-repeat 100% 0;
    padding: 0 20px 0 0;
}

a.mail:hover, a.mail:active, a.mail:focus {
    background: url(images/mail.gif) no-repeat 100% -100px;
    padding: 0 20px 0 0;
}