/* flex */
.flex {
  position: relative;
  display: flex;
}
.flex-center {
  align-items: center;
  justify-content: center;
}
.flex-around {
  justify-content: space-around;
}
.flex-between {
  justify-content: space-between;
}
.flex-row-center {

  align-items: center;
}
.flex-row-end {
  align-items: flex-end;
}
.flex-col-center {
  justify-content: center;
}
.flex-col-end {
  align-items: flex-end;
}
.flex-column {
  flex-direction: column;
}
.flex-wrap {
 flex-wrap: wrap;
}