.group {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.group .btn {
  flex: 1;
  height: 100%;
  border: 1px solid #d9d9d9;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.group .btn:first-child {
  border-radius: 4px 0 0 4px;
}
.group .btn:last-child {
  border-radius: 0 4px 4px 0;
}