#month {
  text-align: center;
}
table {
  border-collapse: collapse;
  width: 350px;
}
th, td {
  border: 1px solid #ccc;
  text-align: center;
  padding: 8px;
}
th {
  background: #f0f0f0;
}
.other-month {
  color: #aaa;
}
.today {
  background: #ffeb3b;
}
.holiday {
  color: red;
  font-weight: bold;
}
.sunday {
  color: red;
}
.saturday {
  color: blue;
}
#calendar {
  margin: 0 auto;
}
.calendar-header {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 10px;
}
.calendar-header #yearSelect {
  font-size: 22px;
  padding: 2px;
}
.calendar-header #monthSelect {
  font-size: 22px;
  padding: 2px;
}