/* flex */
.flex {
    display: flex;
}
.flex-center {
    display: flex;
    justify-content: center;
    align-items: center;
}
.flex-center-main {
    display: flex;
    justify-content: center;
}
.flex-center-cross {
    display: flex;
    align-items: center;
}
.flex-end-main {
    display: flex;
    justify-content: flex-end;
}
.flex-end-cross {
    display: flex;
    align-items: flex-end;
}
.flex-between {
    display: flex;
    justify-content: space-between;
}
.flex-between-center {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.flex-between-start {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}
.flex-between-end {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}
.flex-between-baseline {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
}
.flex-around {
    display: flex;
    justify-content: space-around;
}
.flex-around-center {
    display: flex;
    justify-content: space-around;
    align-items: center;
}
.flex-baseline {
    display: flex;
    align-items: baseline;
}
.flex-column {
    display: flex;
    flex-direction: column;
}
.flex-wrap {
    display: flex;
    flex-wrap: wrap;
}
.flex-grow {
    flex-grow: 1;
    width: 0;
}
.flex-column > .flex-grow {
    width: initial;
    height: 0;
}
/* end flex */