.flex {
    display: flex;
}

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

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

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

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

.flex_column_center {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.flex_row_justify_center {
    display: flex;
    justify-content: center;
}

.flex_row_justify_between {
    display: flex;
    justify-content: space-between;
}

.flex_row_justify_around {
    display: flex;
    justify-content: space-around;
}

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

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

.flex_1 {
    flex: 1;
}

.flex_0 {
    flex-shrink: 0;
}

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

.width100 {
    width: 100%;
}

.height100 {
    height: 100%;
}