.d-flex{
  display: flex;
}

.f-row{
  flex-direction: row;
}

.f-column{
  flex-direction: column;
}

//align-items
.a-center{
  align-items: center;
}

.a-end{
  align-items: flex-end;
}

.a-start{
  align-items: flex-start;
}

.a-stretch{
  align-items: stretch;
}

//justify-content
.jc-bet{
  justify-content: space-between;
}

.jc-center{
  justify-content: center;
}

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

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

//flex-wrap
.fw-wrap{
  flex-wrap: wrap; 
}