.flex {
  display: flex;
}

/* Flex Direction */

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

.flex-col {
  display: flex;
  flex-direction: column;
}

.flex-reverse {
  display: flex;
  flex-direction: row-reverse;
}

.flex-col-reverse {
  display: flex;
  flex-direction: column-reverse;
}

/* Justify Content */

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

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

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

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

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

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

/* Align Items */

.ai-center {
  align-items: center;
}

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

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

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

.ai-baseline {
  align-items: baseline;
}

/* Specific Combinations */

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

.flex-start {
  display: flex;
  flex-direction: row;
  justify-content: flex-start;
  align-items: flex-start;
}

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

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