.flex-y-c {
  align-items: center;
}
.flex-y-center {
  align-items: center;
}
.flex-y-sa {
  align-items: space-around;
}
.flex-y-sb {
  align-items: space-between;
}
.flex-y-start {
  align-items: flex-start;
}
.flex-y-end {
  align-items: flex-end;
}