.fc-button-group {
  display: inline-flex;
  flex-wrap: wrap;
}
.fc-button-group .fc-button {
  flex: 1 0 auto;
}
.fc-button-group .fc-button:first-child:not(:last-child) {
  border-bottom-right-radius: 0;
  border-top-right-radius: 0;
}
.fc-button-group .fc-button:not(:first-child):not(:last-child) {
  border-radius: 0;
  margin-left: -1px;
}
.fc-button-group .fc-button:last-child:not(:first-child) {
  border-bottom-left-radius: 0;
  border-top-left-radius: 0;
  margin-left: -1px;
}
.fc-button-group--block {
  display: flex;
}
.fc-button-group--block .fc-button {
  flex: 1 0 0;
}