.knoppen:focus {
    border-color: black !important;
    letter-spacing: 3px !important;
     background-color: orange !important;
}

.achtergrond {
  background-color: orange !important;
  font-style: italic !important;
  text-transform: lower-case !important;
}
.gnhoofdletters {
  text-transform: lower-case;
}