h4 {
  text-align: center;
}

.flex-parent {
  margin-bottom: 50px;
}

.flex-start {
  justify-content: flex-start;
}

.flex-end {
  justify-content: flex-end;
}

.space-between{
  justify-content: space-between;
}

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

.space-evenly {
  justify-content: space-evenly;
}

.center {
  justify-content: center;
}

.flex-child {
  text-align: center;
}

.m5 {
  margin: 50px;
  display: block;
}

.column {
  flex-direction: column;
}