.fc button,.fc table,body .fc {
    font-size: 13px !important;
}
.fc-toolbar h2 {
    margin: 0;
    font-size: 20px !important;
}
.fc-basic-view .fc-day-number, .fc-basic-view .fc-week-number {
    padding: 4px !important;
    font-size: 14px !important;
}

#calendar {
  max-width: 100%;
  padding: 10px 10px;
  background-color: #fff;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  border-radius: 8px;
}
.fc-button {
  background-color: #4285f4;
  border: none;
  color: #fff;
  margin: 5px;
}
.fc-button:hover {
  background-color: #357ae8;
}
.fc-title {
  padding: 5px;
  background-color: #ffeb3b;
  border-radius: 3px;
}
.fc-day-header {
  background-color: #4285f4;
  color: #fff;
}
.fc-day {
  padding: 10px;
}