a.hoofdthema:link, a.hoofdthema:active, a.hoofdthema:visited, a.hoofdthema:hover {
    display: block;
    margin-bottom: 10px;
    width: 200px;
}

a.thema:link, a.thema:active, a.thema:visited, a.thema:hover {
    display: block;
    margin-bottom: 10px;
    width: 200px;
}

a.subthema:link, a.subthema:active, a.subthema:visited, a.subthema:hover {
    display: block;
    margin-bottom: 10px;
    width: 200px;
}