flex.css

.box-border {
  box-sizing: border-box;
}
.flex {
  display: flex;
}
.flex-row {
  flex-direction: row;
}
.flex-row-reverse {
  flex-direction: row-reverse;
}
.flex-col {
  flex-direction: column;
}
.flex-col-reverse {
  flex-direction: column-reverse;
}
.flex-wrap {
  flex-wrap: wrap;
}
.flex-wrap-reverse {
  flex-wrap: wrap-reverse;
}
.flex-nowrap {
  flex-wrap: nowrap;
}
.items-start {
  align-items: flex-start;
}
.items-end {
  align-items: flex-end;
}
.items-center {
  align-items: center;
}
.justify-normal {
  justify-content: normal;
}
.justify-start {
  justify-content: flex-start;
}
.justify-end {
  justify-content: flex-end;
}
.justify-center {
  justify-content: center;
}
.justify-between {
  justify-content: space-between;
}
.justify-around {
  justify-content: space-around;
}
.flex-ac-js {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.flex-ac-jc {
  display: flex;
  align-items: center;
  justify-content: center;
}