.bmx-kalender {
  border-collapse: collapse;
  width: 260px;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 14px;
  color: #000;
  text-align: center;
  margin: 20px 0;
}

.bmx-kalender th,
.bmx-kalender td {
  border: 1px solid #000;
  padding: 4px;
  width: 14.28%;
  height: 30px;
}

.bmx-kalender .monatstitel {
  font-weight: bold;
  background-color: #000;
  color: #fff;
}

.bmx-kalender .wochentage {
  background-color: #fff;
  font-weight: normal;
}

.bmx-kalender .highlight {
  background-color: #c00;
  color: #fff;
  font-weight: bold;
}