.flex {
  display: flex;
}

.flex-center {
  display: flex;
  justify-content: center;
}

.flex-center1 {
  display: flex;
  align-items: center;
}

.flex-center2 {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-space-around {
  display: flex;
  justify-content: space-around;
}

.flex-column-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}